Hogwarts has many ghosts, and at any given time some of them may be gone, but never before have all of them disappeared at once. Iit is up to a few solitary students to discover what really lies behind the ghosts' disappearance...

Draco and Harry have alwas been called the heirs of Slytherin and Gryffindor. When Draco drags Ginny Weasley along on a trip, she finds a clue that could change everything, and the last thing she wants is for anyone to find out...