The Devil Rides Out is a 1934 novel by Dennis Wheatley

Dennis Wheatley

Dennis Yates Wheatley was an English author. His prolific output of stylish thrillers and occult novels made him one of the world's best-selling authors from the 1930s through the 1960s.-Early life:...

 telling a disturbing story of black magic

Black magic

Black magic is the type of magic that draws on assumed malevolent powers or is used with the intention to kill, steal, injure, cause misfortune or destruction, or for personal gain without regard to harmful consequences. As a term, "black magic" is normally used by those that do not approve of its...

 and the occult

Occult

The word occult comes from the Latin word occultus , referring to "knowledge of the hidden". In the medical sense it is used to refer to a structure or process that is hidden, e.g...

. The four main characters appear in a series of novels by Wheatley. The book was made into a film by Hammer Film Productions

Hammer Film Productions

Hammer Film Productions is a film production company based in the United Kingdom. Founded in 1934, the company is best known for a series of Gothic "Hammer Horror" films made from the mid-1950s until the 1970s. Hammer also produced science fiction, thrillers, film noir and comedies and in later...

 in 1967.

Plot synopsis

Set in 1930s London and the South of England, Duc de Richleau and Rex van Ryn rescue their friend Simon Aron from a devil-worshipping cult. Rex falls in love with another initiate of the cult, Tanith. Rex prevents Tanith from going to a ceremony on Salisbury Plain. The Duc and Rex rescue Simon from the ceremony. They escape to the home of the Eatons, friends of Richleau and van Ryn, and are followed by the group’s leader, Mocata, who has a psychic connection to the two initiates. 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. During this Mocata summons the Angel of Death using the medium of Tanith. The defeat of the Angel results in Tanith’s death.

After successfully defending themselves through the night the group find that Mocata has kidnapped the Eatons’ daughter. Simon exchanges himself for her. Mocata is using Simon to find the Talisman of Set, a powerful satanic object. The book culminates in a desperate chase across Europe to an abandoned Greek Monastery where Mocata is defeated. The group wake up in the Eatons’ home and realise that during the ceremony they entered the fourth dimension. Mocata is found dead outside the house. The Duc wakes up clutching the Talisman and destroys it. Tanith is found to be alive - Mocata’s soul has been exchanged for hers.

Film

In 1967 the novel was made into a film by the British film company Hammer Film Productions

Hammer Film Productions

Hammer Film Productions is a film production company based in the United Kingdom. Founded in 1934, the company is best known for a series of Gothic "Hammer Horror" films made from the mid-1950s until the 1970s. Hammer also produced science fiction, thrillers, film noir and comedies and in later...

. It starred Christopher Lee

Christopher Lee

Sir Christopher Frank Carandini Lee, CBE, CStJ is an English actor and musician. Lee initially portrayed villains and became famous for his role as Count Dracula in a string of Hammer Horror films...

 as de Richleau and Charles Gray

Charles Gray (actor)

Charles Gray was an English actor who was well-known for roles including the arch-villain Blofeld in the James Bond film Diamonds Are Forever, Sherlock Holmes' brother Mycroft Holmes in the Granada television series, and as The Criminologist in the cult classic The Rocky Horror Picture Show in...

as Mocata.