Having just read the novelisation of this story, by Eric Saward, I have now received the audio reading of the novelisation released in October 2012. This novelisation is read by Matthew Waterhouse, who played Adric, companion to Peter Davison's Fifth Doctor in the 1980s. I was a little dubious, but Matthew Waterhouse reads this very well - his voice has matured, yet is still recognisable as `Adric'.
The reading of the voice of the actor, Richard Mace, to start with sounds a little over the top, but you soon get used to it, and I think he comes across, quite cleverly, as a rather `overwrought thespian' from the Stuart Age - used to projecting emotion and voice in a larger than life manner to a broad audience. As such, Matthew Waterhouse's characterisation of Mace is really quite enjoyable. His rendering of the Doctor and Tegan are quite spot on, and the remainder of the characters are also read very well.
In the story itself, the Doctor, attempting to return Tegan to her correct time and place (1980 at Heathrow Airport), finds that they have in fact landed in the right place, but not the right time. But someone else who should not be there has got there before them; and unless the Doctor and his companions can remove the threat, the Plague and the Great Fire of 1666 may not be the worst things to happen in London this year.
One of the delights of these readings of the novelisations of the `classic' Doctor Who stories, is that, while the novels themselves tend to be quite short (around 130 pages) and are a quick read, on listening to a trained actor's voice portraying the characters, and `emotionalising' the narrative, the story becomes hours of enjoyment, with subtle sound effects, and becomes much more than just a reading of a book, but a whole audio experience - the novels are lifted up beyond a quick read to a new realm and a new way of enjoying Doctor Who.
I thoroughly enjoyed this cd, and this story - totally recommended.