Right after dance camp ends, Lily Richter's mother announces that the family is moving to a new town. Separated from her best friend, and enrolled in a larger unfamiliar middle school, Lily struggles to adjust, troubled by the feeling that her new dance team does not really want her.

"Trace Carter doesn't know how to feel at ease in his new life in New York. Even though his artsy Auntie Lea is cool, her brownstone still isn't his home. Haunted by flashbacks of the accident that killed his parents, the best he can do is try to distract himself from memories of the past. But the past isn't done with him. When Trace takes a wrong turn in the New York Public Library, he finds someone else lost in the stacks with him: a crying little...