1: Zara is hastily browsing book shelves with her phone light. Lea leans in close.
Lea: He’ll catch us! Maybe we should get out.
Zara: We won’t get another chance at this!

2: They’re lead to a little side room, a stone arch leading into deeper storage.
Zara: Here, it must-
Tullus: That’s far enough.

3: The girls flinch and turn around.

4: Tullus is there, having crept up without his cane. He’s leaning with one arm on the railing, and the other holds a small, discrete pistol at his side, pointed at the girls (and the viewer).