"Publication Order #39
The TARDIS lands on a planet the Doctor doesn't recognise - but its inhabitants seem to know him. They think he's the Evil One and aren't pleased to see him.
Two warring tribes occupy the planet: the savage Sevateem and the reclusive Tesh, separated from each other by a deadly energy field. When the Sevateem believe their God, Xoanon, to be a captive of the Tesh, they decide to break through the barrier and rescue him. The Tesh, however, have other ideas.
Befriended by L"