Initially, they haunt their home, Resthaven, and they adopt another young ghost, a girl they name Adopta, who has no memory of her past.

When the arrival of new owners forces them to leave, they travel to London and reluctantly begin haunting an underwear store, and apply to the Dial-a-Ghost agency for a new home.

The Dial-a-Ghost agency finds the perfect home for the Wilkinsons in a ruined abbey, and tells them they can move in on Friday 13th.

Meanwhile, orphan Oliver Smith is surprised to learn he is a descendant of the Snodde-Brittle family, and that he now owns Helton Hall following the death of a cousin.

Fulton and Frieda are now in severe debt and, believing Oliver to have been killed by the Shriekers, spend thirty thousand pounds on 'Ectoplasm Eating Bacteria' to clear out the ghosts.