Megatz

 was an inhabitant of Tramatz. She asked the Doctor what he was doing here. She also wanted to know what happened to her parents. She knew about the war but no-one talked about it. She went with Bernice Summerfield to discover the very dark thing, where she learnt that her parents were the reason the war ended. She turned off the weapon hoping it would stop Effenish using the bombs. (AUDIO: The Very Dark Thing)