"Miss?" Mina is puzzled by the librarian's sudden silence and prolonged gaze at the coin.
"Mina, what did this thief look like?"
"Um, tall... with long dark hair and a hat... He had no horns. And a patched cloak, and -"
"All right, Mina, thank you," Miss Ver Susa interrupts. "Why don't you get on with the returns..."
Mina hurries off cheerfully, missing the preoccupied look on Miss Ver Susa's face. Something about that coin really disturbed her.