A castle looms dark against the light of the moon. No candles burn in its windows. No laughter rings through its halls. What has happened to the castle and the people who lived there? Merlin the magician asks Jack and Annie to find out. But are they brave enough to step through the creeking doors and solve the mystery of how the castle became haunted?

"Emry, the daughter of the famed wizard Merlin, must disguise herself as her twin brother to learn magic in Prince Arthur's court, where she finds scandal, danger, and romance"-- Provided by publisher.

"A descendant of the great wizard Merlyn must atone for the harm he caused while under the thrall of the evil Morgan le Fay"-- Provided by publisher.