Amazon.com Product Description (ISBN 0439545307, Hardcover)

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.

Amazon.com Product Description (ISBN 0307286061, Audio CD)

The next installment in the New York Times bestselling series, CHARLIE BONE AND THE HIDDEN KING

In Charlie’s most perilous adventure yet, the shadow from the Red King’s portrait has escaped. Strange things start to happen at Bloor’s Academy. But, with the help of a mysterious force, Charlie and his friends are closer to discovering the truth about Charlie Bone’s father.

Children of the Red King Series
Book 1: Midnight for Charlie Bone
Book 2: Charlie Bone and the Time Twister
Book 3: Charlie Bone and the Invisible Boy
Book 4: Charlie Bone and the Castle of Mirrors