The story of how ten-year-old Mary comes to live in a lonely house on the Yorkshire moors where she discovers an invalid cousin and the mysteries of a locked garden.

When her father goes away, eleven-year-old California "Callie" Poppy winds up with her eccentric Great-Aunt Monica and their ancestor, the once-famous etiquette expert Eleanor Fontaine, now a hypersensitive ghost.

"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...