When Asa Pike, a Bloor's Academy student with the ability to change into a beast at dusk, goes missing, twelve-year-old Charlie Bone suspects a new classmate, the magically gifted Dagobert Endless, of foul play.

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.

In January 1916 Henry Yewbeam and his younger brother, James, have been sent to stay with their cousins at the Bloor's Academy. It is one of the coldest days of the year, and all Henry wants to do is hide from his mean cousins and play marbles. He finds a nice, long hall and begins to roll his marbles. Then he discovers a marble that doesn't look familiar to him. Suddenly a series of strange events takes place. Henry begins to disappear. He quickly...