Brennan's immediate instinct upon hearing someone approach her was to attack. But when a teenage boy came into view and started asking about his sister, she managed to curb her violent impulse. She compromised, though, by shining her flashlight directly into his eyes.

"No," she answered, very slowly. He was was wearing the same outfit as her, which signaled - perhaps too obviously? - that he has also been brought here against his will. He also showed evidence of damage to the left humerus, and there was something slightly off about his pupils, but she couldn't put her finger on what. Severe hyperopia, perhaps.

"What is this place?" she asked. It would be best to gather as much information as possible, then make a well-informed decision as to whether or not to treat the boy with hostility. Or open up a container of kick-ass, as Booth would say.