On assignment to find invasion plans, Rebecca escapes empty-handed from the castle of Prussian General von Kessler, with the aid of the Aurora and her cousin Phileas. They are then summoned back to Fogg Manor, Shillingsworth Magna, with the news that the body of Phileas's father has disappeared from the family crypt. The group travels to the manor, where a number of strange occurrences have been reported. The vicar has called in an exorcist, who seems smitten with Rebeccas' charms. Phileas, who left the Secret Service after his father's actions got his brother killed, is none too pleased or interested in the whole affair.