Charlie Bone and the Castle of Mirrors is by Jenny Nimmo. This is the fourth book in the Children of the Red King series. It's another semester at Bloor's Academy. Charlie Bone is back and must rescue Billy Raven from his new parents at the spooky Passing House. But he discovers a secret there that might free Billy and allow him to find his father at the same time. He must also discover the identity of the newest endowed child. What a way to start a school year! A charming series for those who enjoyed Harry Potter.
Ratings: 7th grade - 8 out of 10.