The Twistrose Key

After a mysterious key arrives for her, eleven-year-old Lin Rosenquist finds a crack in the cellar, a gate to the world of Sylver. This frozen realm is the home of every dead animal that ever loved a child. Lin is reunited with Rufus, thepet she buried under the rosebush and together they must find the missing Winter Prince in order to save Sylver from destruction. After finding a mysterious key, eleven-year-old Lin finds herself in the wintry world of Sylver, where all the inhabitants were once either beloved pets or tamed wild animals. Lin must find the missing Winter Prince before she can return home.