Chapter Five: The Echo That Never Fades

The bunker smelled of ozone, old blood, and desperation. Vox-Officer Tamm sat hunched over his console, fingers dancing across the cracked keys as the last power cells flickered. Outside, the screams of the dying mixed with the chittering roar of the genestealer horde. Sergeant Vela Kross stood by the barricaded door, a laspistol in one hand, a frag grenade in the other. Her face was a mask of calm acceptance. "They're through the outer perimeter," she said, her voice flat. "We have maybe five minutes." Tamm didn't look up. "That's enough time." He adjusted the frequency, feeding the last of the emergency reserves into the transmitter. The static crackled, then cleared. He took a breath. "This is Vox-Officer Tamm, Hive Tertium, last stand. We are overrun. The genestealers have breached the inner walls. Sergeant Kross and remaining personnel are making a final defense." He paused, his throat tight. "We held the line. For three days and three nights, we held against the tide. Hive Quintus fell, but we delayed the spread. Tell the galaxy we were here. Tell them we did our duty." Kross moved to his side, placing a hand on his shoulder. "Make sure they hear the next part too." She turned to the vox, her voice steady. "This is Sergeant Vela Kross, 88th Cadian Siege Regiment. We have no reinforcements. We have no escape. But we have the Emperor's light. We die as we lived—standing. For Cadia. For Terra. For every world that will face this enemy." Tamm keyed the transmit lock. "Signal broadcast on all frequencies. Repeating on loop until the generator fails." He stood, drew his own laspistol, and faced the door. The first pounding came—heavy, rhythmic, cracking the metal. Kross smiled grimly. "Ready, son?" "Yes, Sergeant." They stood shoulder to shoulder as the door buckled inward. The first genestealer burst through, a nightmare of claws and teeth. Kross fired, dropping it, but three more followed. Tamm shot wildly, his aim true enough to wound one. The room filled with gunfire and screams. In the final moments, as a clawed limb tore through his chest, Tamm slumped against the vox console. His hand brushed the broadcast key one last time. The loop still played: "We held the line... We held the line..." Silence fell. --- Months later, in the void above a forgotten sector, the Astropathic Relay Station at Cyrax Prime received a faint, distorted signal. It had traveled through the warp, bounced between dying satellites, and arrived as little more than a whisper. The master of the station, an old man with half a cybernetic face, listened to the recording. He heard the voice of a boy and a woman, their words blurred but defiant. He logged it into the archives under "Lost Regiments - Hive Tertium." But he made a copy. He transmitted it to the nearest Space Marine chapter, with a note: "They held the line. Their sacrifice is recorded." In the vast, empty galaxy, someone heard. And somewhere, a new oath was sworn.