Kaden was feeling a bit stunned out. There had not, ever in his memory, been a single man in his entire life who talked about books with the unreserved enthusiasm that Cathal did, and when Cathal tapped the book Kaden felt a sudden rush of connection. Cathal wasn't just talking about books, Cathal was talking to him about books, and Kaden suddenly couldn't think of anything he wanted more than to read every single one of them so he could talk to Cathal about it too. "Can I borrow this?" he asked, trying not to make it sound like it was the biggest deal in the world.