After leaving home in search of work, Donal Grant accepts a position as tutor to a young boy who lives in a sprawling castle, which also houses an eccentric old man, a beautiful and troubled young woman, and an ancient family legend of a secret room hidden somewhere within the castle. This is the sequel to "Sir Gibbie" by the same author, but is quite capable of standing as a complete and compelling story in its own right. - Summary by Devorah Allen