I waited.

"In the lower level. The conditioning chamber." She kept her eyes on the rolled sketch. "There's a secondary room adjacent to it that doesn't appear on any official layout. He uses it for storage, equipment, supplies for the conditioning process." She paused. "But there's also a cot in it. And personal items. Someone has been living in that room."

"A prisoner."

"Not exactly. The door opens from the inside." She finally looked up. "Someone chose to be there. Or was told they were ...