Is it inevitable that the fortieth anniversary novel should naturally be such a disappointment? For me, the Pertwee-era was the "Golden Era" of Doctor Who and these two guys were part of that magical chemistry. Since then, Dicks has had some success as a writer of original fiction, and Letts has scripted two enjoyable Pertwee-era radio shows (Doctor Who: Ghosts of N-Space. Starring Jon Pertwee (BBC Radio Collection) and Doctor Who: Paradise of Death. Starring Jon Pertwee (BBC Radio Collection)). However, as novellists their styles are so different that this book is almost pointless. The Letts part took me about 5 days to plough through and the Dicks part about 5 minutes! With due respect, Dicks should have done it on his own. The result is so close to Doctor Who and the Daemons (A Target adventure) and the ending so disappointing that this book is no more than a collector's item. In this case, you CAN judge a book by its cover - unbalanced, out of proportion, no sense of perspective. Keep it - it might be worth selling someday.