Bart felt a thrum of tension that he quickly forced into relaxation as Cass pulled him into the shadows. He dropped his center to a ready stance, tight against the wall but able to move. No need to signal his acceptance, the silent bat before him would know. He would hold back, trusting stillness and the shadows to hide him until action was needed.

Whatever it was sounded large, and any of the Rapture natives were dangerous. Bart couldn't speak, and his ability to communicate silently was limited at best. Unarmed and unarmored, the best thing he could do was hang back, and only reveal himself if there was a strategic advantage.