Normally I'm quite a slow reader and I also like to read multiple books simultaneously so reading a book of this size would normally have taken me a few weeks (months.................maybe a year) to finish, but in rare form once I started reading I couldn't stop and managed the whole thing in a day. This is probably the most quintessential Fourth Doctor story ever written as it all comes from the mind of the man himself Tom Baker, albeit with James Goss ghost writing and based on an idea for an unproduced Doctor Who movie Tom had with Ian Marter during his first year. It starts off true to form for the Fourth Doctor era with a base under siege in an isolated English village that carries that little touch of Philip Hinchcliffe's Gothic horror. But then in it's second half it goes completely demented, like The Mind Robber from Hell kind of demented. Doctor Who movies are always wonderful ideas to speculate on but let's be honest, what the second half involves would never have had the proper budget to fully realise. The whole theme is centred on fear and the various forms it takes with the Doctor pushed to his physical and mental limits against a supernatural force claiming to be the Devil. I do absolutely adore this story and love Tom Baker, but it is kind of true to Baker's ego having his Doctor go up against the Devil and defeat him in such a smug toothy-grinned manner. But that's just what we love about Tom Baker and the Fourth Doctor in general, yes he is the most iconic Doctor of all time, and he knows it! We also get some surprising cameos that are very welcome editions to this epic. If you're a Fourth Doctor fan this is a must own for your collection.