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

Previous Story: The Darkening Eye

This is a story where you really feel the stakes, from the moment the team land on the island and the TARDIS falls off a cliff to a numerical value converting reality into numbers. It's one of the most fascinating concepts I've seen for a villain and it's horrifying. It's Doctor Who at it's best and the importance of numbers in this story really reminds me of Logopolis. Adric is basically tailor made and is, in my opinion, the highlight of this story.

The side characters are fantastic and allow for the entities to really show off their capabilities. I saw the twist coming regarding Constable DeValley coming a mile away, what an infuriating character (in a positive way). The ending is a self sacrifice, it was touching but it felt like an quick way out for a villain that had been established as such a large threat.

Otherwise, I struggle to find anything bad about this story. If you're a fan of horror mixed with reality-bending sci-fi then this a story absolutely worth checking out. It is also technically the last chronological story with Adric before Earthshock, atleast in terms of audio stories.

Next Story: Earthshock