Evolution looks from the outset to have too many things going on - a central story riffing on Doctor Moreau-style fusings of men and animals, with guest appearances from both Rudyard Kiling and Arthur Conan Doyle, but with a light and pacy storyline this is a pleasant if unadventurous read. The characters - both regulars and new - are well drawn, and there are enough twists and turns to keep things interesting, the only real fly in the ointment is Peel's heavy-handed treatment of the Doctor being the influence for Sherlock Holmes. Easily John Peels best Doctor Who novel.