The warning blazed in Ethan's mind. WARNING: EXTERNAL INTERFERENCE DETECTED. Before he could speak, the facility reacted. Ancient symbols flared across the walls, brighter than before. Sealed doors began to close, grinding shut with the weight of centuries. The archive around them started locking itself down, shelves retracting, displays going dark. Cassian's expression shifted. "The facility is sealing itself." "What does that mean?" Ethan asked. "It means someone is trying to breach the Trial system. The facility was designed to become inaccessible if an unauthorized force attempted to interfere with the Bloodline infrastructure." The guardian was already moving, her weapon drawn, her eyes scanning the chamber. "Where are they coming from?" "Not from inside," Cassian said. "The facility would have detected a physica