Charlie Bone and the castle of mirrors

"Charlie and his magically gifted friends and relatives work together to rescue Billy Raven, a young orphan, from a mysterious and dangerous couple who have adopted him."
"Charlie and his magically gifted friends and relatives work together to rescue Billy Raven, a young orphan, from a mysterious and dangerous couple who have adopted him."@en
"Back in Bloor's Academy, Charlie's power takes on a new dimension. He meets a new gallery of characters, including Mr. Pilgrim's replacement, Tantalus Ebony, and the mysterious new student Joshua Tilpin, who appears to be magnetic. But not all is well. Billy has been adopted by the O'Gres, a child-hating couple, who carry with them a gray bag of oaths wherever they go, seducing Billy to sign an oath of obedience, before locking him up behind a force field in an odd place called The Passing House."@en
"Charlie and his friends are back in danger, and the balance of power between the Children of the Red King has never been more dangerous. In a dark laboratory deep within Bloor's Academy, Manfred and Ezekiel are brewing up a very nasty kind of trouble for Charlie Bone."