Una sonata de verano (New Edition)Casio Oliver is obsessed with Winter Prelude. He's been trying to forget the nightmare his life has turned. What he doesn't know, is that his own story has already started with a young boy who offered him an umbrella in the rain, a mansion on a cliff, and a book that hides magic, death and love among its pages. In the abyss that separates magic from reality, Casio has to decide for his own reality.