Clara is searching for the special key to unlock a box from her late mother. Inside that box is a priceless item that her mother left for her. During her godfather's yearly holiday party, Clara almost gets the key but it disappears. She embarks on a quest into a mysterious world which has four different realms: a snowflakes realm, flowers realm, sweets realm, and the challenging realm where the key is. As she undertakes her journey she meets different...

"A story that unfolds from inside the mind of Oskar Schell, an inventive eleven-year-old New Yorker whose discovery of a key in the belongings of his father, who died in the World Trade Center on 9/11, sets him off on an urgent search for the lock it opens"--Container.