On the eve of May Day, dark elemental forces begin to disturb the village of Devil's End as the Master summons the demon Azal: unexplained murders, a stone gargoyle come to life, and a nigh-impenetrable infernal energy dome. With the Master fully prepared to destroy the Earth, the Doctor and UNIT - aided by a benevolent practitioner of witchcraft - battle the wicked rites of a secret science wielded by an alien from another world.
Director: Christopher Barry
Writers: Barry Letts, Robert Sloman, Terrance Dicks
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The entertaining Damaris Hayman brings something of the eccentric Margaret Rutherford to this enjoyable series as she claims to be an white witch ("Hawthorne") warning of great dangers should the pompous "Prof. Horner" (Robin Wentworth) go ahead with uncovering a tomb long since…
