"Say what you feel," Jakin urges her from behind his bookcase. Mina swallows and closes her eyes. It's easy for him to say.
"If you hadn't taken the book," she starts, and feels the tears come to her eyes. That was where it had all gone wrong.
"You owe me a debt! For Miss Ver Susa! It's your fault she's missing!"
Her voice rings out around the empty library, echoes through the shelves. There is no-one else to hear - but she is answered.
"What is this debt you are claiming?"
The book thief has appeared.