This is part of a series of reviews of Doctor Who in chronological timeline order.

Previous Story: Eldrad Must Die!

A fun spin on the traditional historical with a great historical character. Tegan gets a great role in this, even though I'm starting to feel bad for all the stuff she has to go through. Still, the idea of two characters "swapping" in time is a fun one (though it's technically three but who's counting?). Queen Æthelfrid is a really cool character and I like how she doesn't completely dismiss the idea of time-travel, making this story flow a lot smoother than if Tegan got locked up or something. Turlough was also pretty good in this getting into a fight with someone who dislikes him because he's posh.

It's not a remarkable story and there were some very strange elements (the Doctor doesn't question the fact that an 80s (I think) scientist just invented a time machine). I think it's such an intriguing part of history being explored here. I'm really struggling to write this review because it's such a simple story. A simple story executed perfectly.

Next Story: Prisoners of Fate