Part OneSeries Episode Number: 462
World Premiere: Sat 29 Oct 1977 - 6:11pm GMT [BBC One] (United Kingdom)
First Broadcast: Thu 26 Jun 1980 - 5:30pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 38 seconds
6.70 Million (UK)
Chart Position: 70 () (UK)
Recorded on Sat 20 Aug 1977 in TC6
The Doctor and Leela arrive in present day England at Fetch Priory where a mysterious skull that is older than mankind exerts a deadly influence on those around it.