Season 15, 1977, 4 parts.
Some unethical scientists do some kind of sciencey-scan on an unusual, possibly alien, skull. This ‘activates’ the skull which slowly transforms the lady scientist into a gold, gorgon-like woman and summons beasties reminiscent of H.P. Lovecraft’s From Beyond…I think so that it can manifest into it’s previous gestalt form and do some bad things to the universe. Luckily, old local Mrs. Tyler is a disciple of the ‘old religion’ AKA witchcraft and knows some tricks, and she teams up with our heroes.
This is one that probably could have been done in 2 episodes, especially considering The Doctor and Leela don’t do much until the climax. As usual it’s a mix of occult and space/time gobbledygook. The most mad of the mad doctors has a bad accent but the other doctors are less hammy. Overall, another germ of an interesting concept, left out so long that it becomes stale, and tentatively kicked down the hall a bit.
Next up: The Sun Makers