Jax crouched low behind a dune and watched the red lights blink on the tall monitoring tower. Its sensors swept the sand in slow circles. Every sweep marked who moved and who stayed. He needed to cross into the next sector before the hoarders buried their tracks, and the tower made that nearly impossible. A bright butterfly with huge glassy eyes drifted past his shoulder. It landed on a wire of the glowing boundary fence and did not burn. Jax stared. The creature's wide eyes blinked, then it lifted off and floated through a narrow gap between two panels. The wire there flickered, dim and weak. He marked the spot in his head. A dead patch. A way through. But crossing alone in daylight was suicide. He needed Theo to know the plan, and he needed a drop point that no patrol watched. Jax moved back through the dunes to the small armored post tucked between two ridges. He slid a folded note through the slit in its door. Inside the note: one line about the weak panel, one line about the hour, one line asking Theo to leave a sign if he agreed. By dusk, a chalk mark waited on the post's plating. Theo had read it. Theo would cover him. Jax pressed his palm flat to the cold metal and let out a slow breath. That night Jax slipped through the dim panel while the tower's beam swung wide. He reached the next sector with sand still on his boots. Behind him, an alarm began to whine. The lights on the tower turned from red to white. They had seen something cross.

The white beam swept the open sand, and Jax froze flat against a low ridge. The dune field stretched wide around him, pale and bright, with no cover for fifty paces. Behind him the fence still hummed. Ahead, the tower's white light marked him as something to be found. He counted breaths. Patrols would come from the north, where their beacons stood on tall metal legs to mark each sweep line. He had seen one glinting earlier, its crystal head catching the beam. If he ran for it, he could crouch in its shadow and let the light pass him by. Jax moved low and fast across the soft sand. His boots slid, his lungs burned, and the white beam swung back toward him. He dropped behind the patrol marker just as the light crossed the ridge. The crystal above him glowed faint pink under the sweep. Voices came. Two patrol members, close. Jax pulled the worn credential from his jacket and held it loose in his hand. The stamped date was old but still readable. He stood slowly, shoulders bent like a tired worker, and stepped into view. He lifted the card. "Maintenance check on the marker," he said. "Beam threw a fault." The lead patrol took the card, looked at the serial line, and grunted. The other one scanned the dune behind him. Jax kept his hands still. His heart did not. The lead handed the card back. "Be quick. Tower's hot tonight." They moved on. Jax waited until their steps faded, then slipped past the marker into the deeper dunes. He was through. But they had his face now, and a name on a card that was not quite his.