Doctor Who and the Daemons

Doctor Who is strangely concerned about Professor
Horner’s plan to cut open an ancient barrow near the
peaceful village of Devil’s End.
Equally worried is Miss Hawthorne, the local white witch,
who foretells a terrible disaster if he goes ahead.
The only person who wants the Professor to open the
barrow is the new vicar (in truth THE MASTER) whose
secret ceremonies are designed to conjure up from out of
the barrow a horribly powerful being...