Something is wrong in the house that Lin's family has rented; Lin is sure of it. The clocks tick too slowly. Frost covers the flower bed, even in a rain storm. And when a secret key marked 'Twistrose' arrives for her, Lin finds a crack in the cellar, a gate to the world of Sylver. This frozen realm is the home of every dead animal who ever loved a child. Lin is overjoyed to be reunited with Rufus, the pet she buried under the rosebush. But together they must find the missing Winter Prince that night in order to save Sylver from destruction. They are not the only ones hunting for the boy. In the dark hides a shadow-lipped man, waiting for this last Winter Prince to be delivered into his hands. Exhilarating suspense and unforgettable characters awaits the readers of this magical adventure, destined to become a classic.