The librarian is standing by the book cart, which is loaded with books for reshelving. "I think I saw the book thief," Mina says. "What, just now?" "No, yesterday." "When you were shelving?" "No, afterwards. I mean..." Mina falters as she realises what she's said. "After curfew?" She blushes and looks away. Miss Ver Susa folds her arms. "Tell me what happened."