The end of the 1800s. A girl named Wisteria is peddling wares. She lives in the attic of a church and her only joy in life is the fact that the demon Marbas comes to visit her if she knocks on the far most window three times.

As Wisteria and Marbas travel to the Lake District with Diana and Naberius, Snow has an encounter with some old friends that takes a dangerous turn.