"Well," says the man, "you be sure to tell Miss Ver Susa here if you do, and she will tell me." He puts his paper back in the pouch he is wearing. "Thank you for your help." As the door swings shut behind him, Mina turns back to Miss Ver Susa. "Miss, what's wrong?" "He's investigating book thefts." "From here?!" Mina is horrified. "No, no," Miss Ver Susa says hastily. "From libraries in the upper levels, don't worry." She pats Mina's shoulder. "Now, why don't you start with the reshelving?"