CHAPTER 26 – Rules of Engagement

  The canopy still held the last echo of the Xi strike that had erased the helicopter. A faint smell of burnt resin hung in the air where leaves and bark had been seared by the heat of the explosion beyond the ridge. Fragments of metal lay scattered in the branches and undergrowth, catching little light and none of the attention of the men still climbing toward the shelf.

  Delta moved in tight, fast intervals, rifles up, beams sweeping for any irregularity in the trees. They had already lost contact with two operators who had pushed higher on the slope. The last recorded positions showed those men nearing the funnel that opened toward the shelf. The current line had not caught sight of them again.

  Erin could still hear the fight in the way the forest sounded around her. Every small sound had a shape. The crack of gunfire rolled up the incline in sharp bursts. Shouted orders rose and fell. The mechanical rhythm of boots on loose soil came closer in measured waves. She kept both hands on the weapon and her body between the children and the narrow line of approach, but she heard all of it.

  The air changed when the Xi arrived.

  It did not come with sound at first. It came with a faint pressure against the skin, a shift in the air that the helmets registered a fraction of a second before human nerves caught up. Tirra felt the alert in her visor, a thin Xi signature that appeared at the edge of her field and moved quickly inward. Seryn saw the same markers on his display.

  Nine new icons resolved along the lower arc of their HUDs, each labeled with an A-Team identifier. Their movement patterns laced through the projected terrain map that floated on the inner surface of Xi visors. They were coming up the same slope as Delta, but at a different angle and with a speed no human squad could match.

  To Erin and the children, the arrival registered only as a set of additional muted markers on their helmets, abstracted shapes that indicated friendly Xi presence without offering detail. Lila saw them appear along the periphery of her vision and hesitated, not sure whether to be relieved or more afraid.

  Then the forest in front of the human line shifted.

  A branch dipped where no weight should have been. A cluster of leaves folded sideways without a visible hand. The nearest Delta operator saw it and began to bring his rifle around, but the motion never finished. A shape he could not see reached him before his arms completed the arc.

  The first Xi strike landed with a controlled, focused impact that drove force through armor into bone and muscle at angles that could not absorb it. The operator’s breath left him in a short, involuntary sound. His weapon jerked out of line and fell from his grasp. He went backward, hitting the slope in a roll that took him out of the fight before he understood what had happened.

  Farther down the line, another operator tried to pivot and cover the new gap. A cloak field shimmered against his rifle barrel as a Xi hand caught it, redirected the aim harmlessly across the trees, and then took him at the legs. He dropped hard. The shot he fired went high into the canopy, cutting through branches and nothing else.

  The ridge became a place of partial information. Muzzles flashed against the trunks. Beams sliced through the undergrowth, tracing where men thought their targets were. Xi moved through the spaces between those expectations, never staying at the point where the last shot had been aimed. Their outlines remained ghost traces on Delta optics, a series of broken hints rather than a full picture.

  Kaedran Vos took the forward center position in the Xi formation. His outline stabilized at a lower angle on the slope, just below the shelf where Tirra and Seryn held Erin and the children. His team formed a wide V on either side, three anchoring the left flank, three the right, two more settling behind the line to prevent Delta from pushing around them.

  He did not give a spoken command. Everyone on the A-Team had received their assignments before they broke the brush. The engagement unfolded with the kind of clarity that came from repetition and training rather than improvisation.

  A third human went down. A fourth stumbled and tried to drag another operator to cover, only to find there was no stable cover when the enemy did not occupy a fixed place. Delta’s formation compressed one moment and frayed the next, forced to react to enemies that could be felt at the edge of awareness but rarely fixed in the sights.

  Tirra watched long enough to see the pattern take hold. The Xi had the initiative. Delta had lost it.

  She did not wait for the fight to resolve.

  “Now,” she said on the internal Xi channel. “We are leaving the ridge.”

  She turned at once, leaving the brush line and the shelf behind. Her cloak field pulsed outward as she stepped toward Evan. His outline brightened in her visor when she brought him fully into the center of her field. Her hand closed on the housing at his collar, syncing his emitter to hers in a brief flash of Xi glyphs. Then she drew him up against her armor in a smooth, continuous motion.

  His feet left the stone. His arms locked at once around the reinforced plates between her shoulders. The helmet narrowed his view to the interior of her cloak field, framing the world in the steady shape of her armor and the muted contours of the forest beyond.

  “I have you,” she said. “Do not let go.”

  Seryn moved at the same time. He stepped in front of Lila, slid one arm behind her knees and another across her back, and lifted. Her breath caught in a small, startled sound, then steadied as her visor corrected the abrupt change in angle. Her arms wrapped around his neck plating without needing to be told.

  “You stay turned toward me,” he said. “Do not look back unless I say so.”

  “I will not,” she said.

  Erin felt the absence sharply when both children left the ground. The contact that had defined every step of the climb and every position she had taken on the shelf vanished in a span of heartbeats. It left her standing alone for a moment in the center of the cloak field, weapon in her hands, the ridge still behind her and the fight intensifying below.

  Tirra’s outline shifted to face down the slope that led away from the shelf. “Erin,” she said. “You stay between us. You can run. You will run now.”

  There was no space for hesitation in the way she said it. Erin did not look back at the ridge. She stepped into position, anchoring herself behind Tirra and in front of Seryn, and felt the cloak field adjust to encompass all three human signatures and the Xi who carried the children.

  Behind them, Vos saw the movement on his HUD. Tirra and Seryn’s icons diverged from the shelf, moving down the slope along a predesignated extraction path. He noted it with a single flick of attention, then returned his full focus to the operators attempting to stabilize their line.

  “Delta is falling back,” one of his team said on the closed channel.

  “Encourage them,” Vos answered.

  They did.

  The Xi strikes on the lower slope became more aggressive in the next moments, not reckless but decisively forward. A-Team operatives pressed wherever they felt the human resistance falter, driving wedges into the formation, forcing men to turn sideways to protect one another and losing sight of the ridge in the process. Every time a Delta operator tried to regain higher ground, a Xi presence met him first.

  The line that had been climbing toward the shelf became a line being pushed back down toward the industrial edge of the park.

  Tirra used that shift for exactly what it was worth. The slope ahead of her dropped at a manageable angle, not as steep as the climb they had just endured, but broken by roots and stones that could catch at a careless step. She moved with a speed that respected the terrain without conceding anything to it.

  Evan felt the impacts of her strides as a muted rhythm through her armor. The cloak field around them remained steady, its distortion calibrated to their speed and the changing density of the forest.

  Erin followed as closely as she could without clipping Tirra’s heels. Her lungs pulled hard at the air. Her legs protested with every new jolt, but the suit dampened just enough of the impact to keep her moving. She focused on the placement of each foot, letting the visor’s subtle stabilizing cues guide her around roots and loose stones.

  Seryn brought up the rear with Lila in his arms, his steps precise. His cloak field overlapped Tirra’s whenever the terrain narrowed, ensuring that any human sensor sweep would see nothing but faint irregularities in the air where four human lives moved in a tight, fast group.

  Behind them, the sound of the fight climbed briefly as Delta tried to regroup.

  “Multiple operators down,” a strained voice called across a human channel. “We are losing the ridge.”

  The words reached them as filtered echoes, half-dampened by Xi systems. Tirra heard them plainly. Erin heard only fragments, enough to know that whatever was happening above them was not going well for the men who had come to take her children.

  They ran.

  The forest closed in around them, branches scraping at the edges of the cloaks without finding purchase. The canopy above cut off even the faint reflections of city light, turning the world into layers of shadow and the adjusted glow of helmets and armor.

  Distance began to work in their favor. With each stride, the gunfire became less distinct, the shouts less clear. The slope carried them away from the ridge line and deeper into the interior of Forest Park, toward a point that existed only as a coordinate in Xi systems.

  Erin felt the limit of her endurance approach like a weight sliding closer to the edge of what she could justify ignoring. Her breaths came in rough pulls. The muscles in her thighs had gone from burning to a deeper, heavier ache. She did not slow.

  “Two more minutes,” Tirra said. “You can hold that.”

  Erin did not trust her voice. She nodded once, even though she knew Tirra could not see it, and drove her foot down into the next step.

  The helmets registered the approach of the APC before the ground did.

  A new icon appeared along the outer ring of Tirra’s visor, marked with a clear Xi identifier for armored transport. It moved steadily toward a fixed point ahead of them, its projected path intersecting their own at a shallow angle. Seryn’s HUD displayed the same data in a clean, compressed overlay at the top of his field. The children’s helmets showed only a simplified marker, a soft shape that brightened as it came closer.

  “APC inbound,” Seryn said. “Range closing.”

  The first physical trace came a moment later, a low vibration that ran through the soil under their boots. It did not sound like the heavy, wide thrum of a helicopter. It was tighter, more contained, a repeating pulse that belonged to something low and fast and very close to the ground.

  They broke through a band of thicker brush and into a narrow fold of terrain that leveled briefly between slopes. The projected path on Tirra’s visor aligned with a gap between the trees ahead.

  Air shimmered in that gap, the same kind of distortion that cloaks created around individual Xi armor, but larger and more complex. The shimmer folded inward across itself as the APC’s field collapsed, revealing the vehicle as if the forest had simply let go of it.

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  The armored hull sat low against the ground, its contours curved to deflect both impact and attention. No external lights betrayed its presence. Only the faint glow from control glyphs along the rear panel gave it any visual anchor in the dark.

  To Tirra and Seryn, the APC appeared with full identification details, including hatch status, engine output, and external sensor array. To Erin and the children, it appeared as a solid, shadowed bulk with a single clear point of orientation when the rear ramp began to lower.

  The ramp was already halfway down when Tirra reached it. She shifted Evan’s weight slightly, stepped onto the metal surface without breaking stride, and carried him into the interior. Seryn followed with Lila. Erin’s boots hit the ramp an instant later, her hands brushing the side plates for balance as she climbed in behind them.

  The interior was lit in low, controlled tones that kept their eyes from having to adjust too far from the night outside. Restraint cradles lined the sides, their harnesses already flexing to receive the small forms that the APC’s systems had tagged as priority civilians.

  Tirra secured Evan into the nearest cradle. The harness recognized his weight and size, tightening around him with measured pressure. Seryn set Lila into another and checked the seals with a methodical sweep of his hands. Erin took the nearest fixed seat, feeling the armor reverberate under her as the vehicle’s engine output increased.

  The ramp began to rise before she exhaled fully from the effort of the run. The APC’s internal scanners confirmed all tagged signatures aboard. The hatch sealed. Exterior sound dropped to a muted background presence.

  The vehicle accelerated at once, its propulsion systems pushing it along a route that the helmets showed only as a shifting line on the forward display. The ridge dropped away behind them. The forest became a compressed image on a tactical feed rather than something Erin could feel under her feet.

  She looked once at the children. Their helmets were off now, set back against the cradle mounts. Their faces were pale under the low light, eyes wide, breaths still too fast, but they were here. Alive. Contained within solid walls and Xi systems.

  Tirra and Seryn both turned toward the forward bulkhead, where the feed from the ridge occupied a corner of the display. The image was condensed and translated through Xi sensors, but the essential shape of it was clear.

  The ridge line still burned with the residual traces of the destroyed helicopter. Delta signatures flickered as they attempted to regroup in the trees. Xi markers representing A-Team remained bright and steady, holding the line where human operators had tried to climb and now tried to hold.

  The APC pushed into the forest and away from the first battlefield on American soil. Erin watched the condensed image of that place for as long as it remained on the display and then lowered her head against the back of the seat.

  The fight on the ridge was no longer hers.

  ***

  The operations floor had not settled since the industrial strike. The transport’s erasure had left a weight over the room that no one could name outright, but it had not stopped the work. Drones had shifted to new vectors. Communication channels had layered over one another. New feeds had opened across the main displays, bringing in Delta’s movement toward Forest Park and the attempts to bracket whatever was happening on the slopes above the industrial grid.

  General Harrigan stood at the central console with one hand on the edge of the display. The white of the destroyed transport still marked one corner of the recorded feed. Nearby, the icon representing the second vehicle lay against the digital outline of a warehouse wall. Thermal overlay remained blank where signatures should have been.

  The secure line indicator at the edge of the console had been lit for several minutes before he acknowledged it. The White House had requested him the moment the blast pattern had resolved. He had been unable to step away immediately. There had been too many decisions to make in the first minutes after the strike. Those decisions had been made. Orders were in motion now.

  He glanced once at the cluster of feeds showing Delta elements on the ridge and the hovering icon that represented the helicopter orbiting nearby. Then he nodded to the communications officer.

  “Put him through,” Harrigan said.

  The officer touched the control surface. The secure indicator shifted from pending to active. A moment later, the primary monitor blinked once and resolved into the live image of the Situation Room.

  The Situation Room appeared on the main display with a clarity that came from the secure circuit rather than any sense of calm on the other end. The President stood rather than sat. His hands were braced on the edge of the conference table, shoulders tight, jaw set in a way that suggested he had been holding the same position for longer than anyone would acknowledge aloud. Senior staff filled the space behind him, faces drawn, eyes fixed on the feed from Forest Park that occupied a smaller frame on one of their own screens.

  “Harrigan,” the President said. He did not raise his voice. He did not need to. The tone carried enough weight on its own. “Explain what happened with that transport.”

  Harrigan stood motionless at his console. “Sir, the transport entered the inner district at speed. Delta could not intercept. Viper’s initial runs produced no effect. Missiles were the only remaining option to stop it before it reached civilian structures. The authorization for that level of engagement was already in place.”

  The President’s expression tightened. “You vaporized it. There was nothing left. No structure. No signatures.”

  “You instructed me to contain the situation by any means necessary,” Harrigan said. His voice did not shift. “You authorized lethal measures if recovery was not possible. The vehicle’s resistance to small arms and aviation fire left no alternative.”

  The President’s eyes flicked briefly toward one of his advisors. No one spoke. Several looked away.

  “We do not know who was inside that vehicle,” the President said. The first crack in his voice was small but unmistakable. “You acted without confirmation.”

  “Confirmation was not possible, sir,” Harrigan said. “We had a hostile extraction in progress. The window to stop it was closing. You gave the order to prevent their departure from U.S. soil.”

  The President exhaled through a tightening jaw. He looked past Harrigan’s feed to the secondary display showing the forest slope, where faint pulses of infrared fire still cut through the canopy. “And now we are here,” he said. “What am I looking at?”

  Harrigan shifted his attention to the feed moving across the upper left display. Delta’s telemetry flickered between partial silhouettes and the jagged returns of shifting heat signatures along the ridge. “Delta advanced into Forest Park pursuing an unknown number of Xi combatants. They are now encountering additional hostiles. The engagement has expanded.”

  As if on cue, one of the open channels fractured with clipped static and a strained voice.

  “Command, be advised,” a Delta controller said. “We have more hostiles on the ridge. Multiple Xi signatures. They’re reinforcing.”

  Another transmission followed immediately, tighter and louder. “Movement all along the line. They’re pushing us back. We cannot stabilize.”

  Several advisors in the Situation Room leaned closer to their own displays. The President’s jaw tightened again. “There were only two of them.”

  “There are more now,” Harrigan said. “Trained. Coordinated. This is no longer a containment pursuit. Delta is losing the upper slope.”

  On the tactical map, the human positions began to contract. The Xi signatures pressed upward in deliberate intervals. A small gap opened along the right flank, then closed a moment later as another group of operators fell back to keep from being overtaken.

  Harrigan watched it happen with the steady posture of someone who recognized the implications long before the lines finished shifting. “We are at risk of losing the ridge entirely,” he said.

  The President’s hand tightened against the table. “We cannot let them establish ground inside a national park in the middle of a major city.”

  “Sir,” Harrigan said, “Forest Park is unpopulated at this hour. If there is any location in Portland where open engagement presents minimal civilian risk, this is it. But Delta cannot hold without support.”

  Another sharp transmission hit the net.

  “Delta to command. We need air on station now. They’re breaking the line.”

  The President looked sharply toward the second display. “What do we still have in the air?”

  “Viper,” Harrigan answered. “Already repositioning. They requested it because they are at risk of being overrun.”

  The shared audio feed shifted as the helicopter crew entered their firing path.

  “Viper on approach,” a controller said. “Cleared for run.”

  The Situation Room watched in silence as the aircraft’s thermal trace swept across the canopy on the tactical overlay. A beat later, the audio fractured.

  “Adjusting—taking fire—”

  The channel broke in a violent crack of static.

  Harrigan’s expression did not change. He waited. The room waited with him.

  The next transmission came in a single, unmistakable burst.

  “Viper hit! Viper hit! Aircraft down!”

  Several advisors jerked their attention back to the screens. The President’s face shifted, not dramatically, but in a way no one missed.

  Harrigan spoke before anyone else could fill the silence. “Sir, we are losing ground. Xi forces are advancing. They are taking United States territory.”

  The President stared at the displays for several seconds, watching the Delta positions contract again. The Xi signatures continued their upward movement with the steadiness of a trained unit.

  “What assets can respond,” he asked.

  “Carrier air,” Harrigan said. “Heavy ordnance. We know their shields can be overwhelmed by sufficient yield. We demonstrated that earlier today. We need weight they cannot absorb.”

  The President’s breath slowed once, the kind of measured breath that preceded a decision he did not want to make.

  “And if we do not authorize it,” he said quietly.

  “Then we abandon the ridge,” Harrigan said. “And we abandon U.S. personnel to a hostile force.”

  The room around the President fell into stillness. Advisors watched the ridge feed without speaking.

  When he finally lifted his gaze, the decision had set.

  “Deploy the air wing.”

  Harrigan nodded once. “Orders received.”

  The connection held long enough for acknowledgment before the secure channel closed and the Situation Room dissolved from the display. On the operations floor, officers were already moving to relay the new directives across the network.

  Harrigan turned from the console.

  “Launch the air wing.”

  The order carried through the command center, and the carrier group began to move.

  ***

  The slope had narrowed into a jagged funnel. What remained of Delta’s line held only because there was nowhere left to fall without abandoning the ridge entirely. The men were spread too thin to form a full perimeter. They had condensed into a shallow arc with a single point of overlap that barely counted as cover.

  Staff Sergeant Rourke steadied himself behind the broken trunk of a fallen cedar. His visor was streaked with mud from a near miss he had not fully processed. The air around him carried the tight, metallic hiss of rifles cycling too fast and too close together. He counted what was left of his team, saw the gaps where others should have been, and forced his breathing into something steady enough to think.

  “They’re still moving,” one of the operators beside him said. His voice stayed low but not controlled. “I can hear them. They’re all over the brush.”

  Rourke checked the ridge again. The Xi never held position long enough to target. They moved in clipped intervals that kept Delta guessing, forcing the humans to react instead of plan. It had been that way from the first moment they appeared out of the canopy.

  “Hold the line,” Rourke said. He kept his tone level. “We’re pulling back when air arrives. Not before.”

  He watched the readouts in the lower corner of his display. Their comm net had already registered the Viper’s loss. The channel had gone sharp for ten seconds as every operator processed the same truth, then settled into the grim focus of men who had no room left for disbelief.

  A burst of fire cut through the trees on Rourke’s left. One of his operators stumbled backward, rifle angled away as he tried to find footing on the loose soil. A Xi silhouette flickered in the chaos, not fully seen, only perceived in the way the air bent for a moment. The operator managed one reflexive burst before Rourke caught his plate carrier and pulled him behind the cedar.

  “Stay down,” Rourke said. “You’re bleeding.”

  “I can still shoot,” the younger man said, one hand pressed to the side of his armor where the plating had fractured.

  “You will when I tell you,” Rourke said. He turned him slightly to keep him braced upright. “Right now you stay alive.”

  A flare of movement cut through the right flank. Two more Xi signatures pressed the arc inward, forcing Delta to contract again. Rourke heard the rough static of someone’s open mic, then the sharp impact of a third operator going down.

  “Command, this is Rourke,” he said into his comm. “We are losing the slope. Two minutes is too long.”

  “Air is inbound,” the controller replied. “Hold position until cleared.”

  “We’ll do what we can,” Rourke said.

  He ended the transmission and looked up through the branches. The canopy hid everything but the faintest vibration, a low, distant tremor that he felt more than heard. It was not enough to mark distance, only enough to say that something was coming.

  “Listen up,” Rourke said to the men nearest him. “When air hits the ridge, we fall back to the lower cut. No one runs alone. You move with the man beside you. If you get separated, you head for the rock split and regroup there. Do not break off uphill. Do not chase anything you think you see. We stay together.”

  Someone exhaled hard. Someone else tightened their grip on their weapon. The ridge trembled again in a long, low pressure shift that passed through the trees like a warning.

  Rourke braced his shoulder against the cedar and looked out toward the upper slope. He could not see the Xi clearly, but he could feel them. They were closing the distance with the same deliberate patience they had shown from the beginning.

  “Get ready,” Rourke said quietly. “This is going to hit fast.”

  Above the forest, beyond the reach of the canopy, the first pair of aircraft broke into Portland airspace.

  The ridge waited beneath them.