The Devil Rides Out

The Devil Rides Out is a 1934 horror novel by Dennis Wheatley, telling a disturbing story of black magic and the occult.

[1] The four main characters, the Duke de Richleau, Rex van Ryn, Simon Aron and Richard Eaton, appear in a series of novels by Wheatley.

Set in 1930s London and the Southern England, Duc de Richleau and Rex van Ryn rescue their friend Simon Aron from a devil-worshipping cult.

After visiting the house to discuss the matter and an unsuccessful attempt to influence the initiates to return, Mocata forces Richleau and the other occupants to defend themselves through a night of black magic attacks.

The book culminates in a desperate chase across Europe to an abandoned Greek Monastery where Mocata is defeated.