Thirteen ghosts (Ej svensk text)

After his rich and crazy Uncle Cyrus is lost in a bizarre ghost-capturing incident, Arthur Kriticos is pleased and surprised to inherit Cyrus"' house. He is even more surprised - and somewhat less pleased - when he actually visits the house and discovers it to be a giant glass and clockwork machine designed to hold twelve of the ghosts Cyrus has collected. When the ghosts are then unwittingly released, Arthur must struggle to uncover the secret behind Cyrus"' plan - a plan which will, if successful, turn Arthur himself into the thirteenth ghost.