"N-no, not employed," says Mina. "I help after school. A- are you sure you're all right?"
"Have I not just said so?" There is impatience in his voice. "Where is your library?"
"It's over there," and she points behind her. "The building with the arched windows. Please excuse me, I have to go..."
He watches her as she hurries away, trailing another apology behind her. "I'm so sorry for bumping into you!"