|Edition: || UK (VHS)|
|When: ||August 1991|
|Format: ||1 x VHS|
When a wave of Mandragora energy hitches a ride with the TARDIS to 15th century Earth the Doctor and Sarah Jane's troubles are only just beginning. Caught up in a power struggle for the Dukedom of San Martino and the mysterious ancient cult of Demnos, the Doctor's scientific expertise is really put to the test.
A darker force is beginning to glow, gaining power after centuries of waiting in the shadows. And it must take over the Earth when the evil of Mandragora swallows the moon...
Originally transmitted 4th - 25th September 1976 this adventure is available for the first time on BBC Video.