Children's fiction: Charlie Bone books 4 and 5 by Jenny Nimmo - hardbacks

Charlie Bone and the Castle of Mirrors (Children of the Red King #4):

Charlie’s power is taking on a new dimension as he meets a new cast of characters, including Mr. Pilgrim’s replacement, Tantalus Ebony, and the mysterious new student Joshua Tilpin, who appears to be magnetic. But Charlie isn’t the only one dealing with changes . . . Billy has been adopted by a child-hating couple called the O’Gres, who carry a gray bag of oaths wherever they go, pressuring Billy to sign an oath of obedience, and locking him behind a force field in an odd place called The Passing House. Will Charlie be able to rescue Billy and uncover the mystery behind Joshua’s power?

Charlie Bone and the Hidden King (Children of the Red King #5):

When Charlie turns twelve on New Year’s Eve, the Flame Cats give him a grave warning: Something ancient has awoken, and Charlie must be watchful. Soon Charlie learns that the shadow from the Red King’s portrait has been released, and that it will do anything to keep Charlie from finding his father. Meanwhile, pets are mysteriously vanishing from the city, and Olivia is in danger of revealing her newfound powers.

Condition:

in very good condition; covers are showing minor signs of wear; no rips, tears or marks – see photos for condition