Muriel Joy

 was on the train that Cecelia Pollard took to escape Germany before the Second World War. Sissy thought that she was a spy jokingly. When the a divergent timeline converged with the correct timeline, she was left on the Train with Romana II and the rest of the Time Lords whilst Leela and Sissy was on the other, she later managed to jump form one timeline to another. When she tried to get her purchase, she was reviled to be a metamorph. She was aiming on buying Sissy from Arkadian so that Sissy could be sold to a private collector of Nazi memorabilia. (AUDIO: A Blind Eye)