Colle is passing the records room that evening when the door opens and Inric emerges.
"Oh, are you finished?"
"I am," he says. "I will be collecting the book tomorrow." He pauses. "Thank you for taking care of the visitors."
"Oh, you're welcome," Colle says, pleased that he had noticed, then remembers who she's talking to. "Uh, no obligation."
It is only when he's left her that she remembers one set of visitors she hasn't seen for a few days.