The Doctor and his companion Anna travelled to Exeter in the 21st century where they encountered one of the Doctor's previous companions, Tegan, who cursed the Doctor for what her time with him had done to her. Later in the TARDIS, Anna found a diary that Tegan had kept during her travels in the TARDIS. The diary warned the reader that the Doctor manipulated his companions into killing for him. Anna realised that this had happened to her and asked the Doctor to take her home, which he reluctantly did. (PROSE: Good Companions)