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

Previous Story: Absolute Power

What an incredibly fun story. This might be Miranda Raison's best performance yet as Constance, this story absolutely focuses on her and does it fantastically. We finally get the answer to the mystery behind her husband's disappearance and wow is it awful (in a good way). The scene where Constance confronts her husband was incredible.

Flip is also back! I can already tell that the dynamic between Flip and Constance is going to be great, it's rare that the companions outshine the Doctor but this is one of those cases, it's amazing just how good a pairing this is. As far as the story itslef goes, it's not the most remarkable. Beyond the character moments there's not that much to the actual story and I'm still not sure exactly what the "quicksilver" is supposed to be but those are all minor issues that don't really bring the story down.

Next Story: The Behemoth