Rosamund made herself altogether charming during the ensuing meal. She was so clever that even Lucy's watchful eyes could detect nothing unusual about her. The professor was charmed with her intelligent remarks, her interest in the architecture of the very old church where they had just enjoyed the service, and her eagerness to acquire a more profound knowledge of church architecture in general. This was one of his own special hobbies, and he promised to lend Rosamund books on the subject, and even invited her to go into his library in the course of the afternoon to look at some illustrations which he thought would interest her.