Lydia wasn't hovering because of the book, it was more that she was astounded at seeing Derek Hale with a baby. Not even that, but Derek knowing how to take care of a baby. It wasn't something that seemed to jive with his personality and she was surprised. And kind of impressed.
"Take your time," she said, picking up the letter that he had set on the desk and reading it, her eyes getting wide. Derek Hale was a dad? Well, she supposed he had to be better than his uncle was, so that was at least something. What was he going to do with her? Apparently the mother, whoever she was, wasn't interested in raising her.
Wow. Lydia couldn't even imagine how stunned Derek was right now. "Her name is Daisy," she said, in case he had somehow missed that.