The audiobook novelization of this story is better than the TV version, but it's still one of the weaker Season 18 serials. Meglos impersonating the Doctor remains quite fun, however, the time loop with the Fourth Doctor and Romana goes on for too long, meaning that it takes a while for them to enter the story.

Terrance Dick does add more colour to it with his excellent prose though, and Jon Culshaw does a fantastic job at reading. His Fourth Doctor impression is spot-on as usual, and it's lovely to also hear more of John Leeson as K9.