Raven found the third weakness at dawn.
Not the door, not the ventilation, not the guard rotation she'd been mapping for two days. The third weakness was a person.
One of the four corridor guards had a tell, a habit so small she'd almost missed it on the first cycle. Every rotation change, before taking his position, he checked his phone. Thirty seconds, sometimes forty. Head down, attention split. The window wasn't long, but it was consistent, and consistent was what she needed.
Hinge pin. Rotation gap. Guard with a phone habit.
Three weaknesses.
She sat with it.
The facility layout was still the problem. She could get out of this room. Probably. She could take one guard down in a narrow corridor with compromised ribs and no shoes. Possibly. What she couldn't do was navigate a building she hadn't seen, past perimeter layers she hadn't counted, to an exit she couldn't locate, without knowing what was outside.
She needed a map.
