The future is a grim place in CAT'S CRADLE: WARHEAD. Breathing is difficult without the use of special masks. Police silently patrol the night streets in their hovercars. Shady corporations comb the local parks and sidewalks looking for unclaimed bodies (some still living) to perform dastardly experiments upon. Only one man and his contractually obligated silver cat can save the human race from itself.
We hadn't really seen a desolate future portrayed in quite this realistic fashion before in Doctor Who. Apart from the constant bleak sense of a world gone sour, we also see elements of cyberpunk cropping up here and there. While this aspect isn't as overplayed as one might fear, it does cast a fairly long shadow over the tone and feel of the book. The writing is particularly powerful in places and some of the scenes are surprisingly chilling. There are loads of little asides and passages that make the book spellbinding. It's an extremely well written tale.
The first part of the book deals with the pieces of the puzzle. At first it's not altogether clear how these different sections interrelate to each other. It's quite fun to work out what's going on. A name crops up from an earlier section, a scene links from something that was referenced to earlier. When you finally do figure out what's happening, it's quite rewarding. Personally, I loved putting all of those pieces together. Many times during reading I was finding myself flipping backwards and forwards impressed by the ease in which Andrew Cartmel made everything fit together just so. The Doctor's presence hovers over the many passages that he is absent for. Even during the fairly long stretches where he isn't to be seen, his fingerprints are visible. The plot is careful and calculated, with a lot of attention to detail.
Fortunately, the second part of the book also maintains a high quality of the first. Naturally, the Doctor's plan doesn't seem to unravel quite as expected, so rather than the plot falling into a predictable format, there is still an element of surprise to be had. The future that we had glimpsed in the earlier portions is fleshed out more here. Parts of the story here are trippy and mess with your head in the best possible way.
One of the few things I didn't like about the story was the seemingly shallow portrayal of the main villain. We don't really learn too much about him, about his plans, or about his motivations. But most importantly, we don't really find out why it is that the Doctor is so hell-bent on making sure that his schemes are defeated; we just have to take it on faith. Sure, putting people's souls inside machines to avoid the responsibility of having to clean up the environment does seem to be a bit shortsighted, but it doesn't quite carry the assumed weight that one would expect. It feels a bit of a let down after seeing the Doctor's intricate plan.
Overall, this is one of the better Doctor Who books. The prose is captivating, the story is unpredictable, yet seamlessly logical, and the Doctor has never been more powerful. WARHEAD demands multiple rereads.