What if your favorite characters came to life? Billy's spending the summer in a lakeside cabin that belongs to the mysterious Dr. Libris. But something strange is going on with Dr. Libris's private bookcase. Whenever Billy opens the books inside, he can hear sounds coming from the island in the middle of the lake. The clash of swords. The twang of arrows. Sometimes he can even feel the ground shaking. It's almost as if the stories he's reading are coming to life! But that's impossible, isn't it?