THE UNPROMISED RETURN: BLOOD, BONES, AND HOME

""They aren't tracking the car,"" Marcus muttered, his eyes darting across the diagnostic code scrolling rapidly down the blue tablet screen. ""The wagon doesn't have an onboard telematics module.""

Sarah looked up from the wooden bench where she had laid Lily down beneath an olive-drab army blanket. ""Then how did they find us on the highway? We didn't tell a soul where we were going.""

Marcus stood up, his weapon resting against his knee, his eyes scanning the dusty interior of the shed. He walked back to the station wagon, popped the hood, and verified the engine bay. Nothing. He checked beneath the wheel arches. Clean.

Then his eyes fell on his own deployment duffel bag resting on the concrete floor.

He dropped to his knees, ripping the canvas open. He pulled out his spare combat boots, his field jackets, his dress uniform. He ran his fingers along the seams of every garment until he reached the heavy brass buttons of his service dress coat—the one he had worn through customs at the commercial airport.

The third button down was slightly thicker than the rest. He took his combat knife and sliced the heavy threading. The button popped off into his hand. He placed it on the concrete floor and brought the heavy heel of his boot down upon it. The plastic shell cracked, revealing a tiny copper coil and a micro-battery: an active radio beacon.

""They planted it on me during the debriefing in Germany,"" Marcus said, his voice cold with self-recrimination. ""I led them straight to our front porch. I led them to Miller.""

""Marcus, don't,"" Sarah said, stepping over and resting her hand on his shoulder. ""You didn't know.""

""I should have known!"" he snapped, slamming his fist against the side of the metal crate. The sound echoed through the hollow shed. ""Miller knew. He was running for three weeks because he stripped his gear down to the thread. I was so eager to see Lily... so eager to walk through that front door, that I didn't even sweep my own pack.""

He stared at the crushed beacon on the floor. ""The second SUV from the highway isn't searching blindly. They lost our visual, but they had our trajectory. When that beacon stopped moving, they established a containment radius.""

As if on cue, the faint, rhythmic thumping of rotor blades began to vibrate through the corrugated iron walls of the shed. It was low, muffled by distance, but unmistakably the sound of a twin-turbine utility helicopter flying low over the ridgeline, utilizing terrain masking to approach undetected.