Part TwoSeries Episode Number: 463
World Premiere: Sat 5 Nov 1977 - 6:10pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 27 Jun 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 44 seconds
7.50 Million (UK)Appreciation Index: 75 (UK)
Chart Position: 54 () (UK)
Recorded on Sat 20 Aug 1977 in TC6
As Thea succumbs to the power of the skull, the Doctor realises that an ancient horror from the mythology of his own people is manifesting itself at Fetch Priory.