There are what seem like hundreds of Doctor Who novels, most written during the hiatus between 1989 and 2004. I came by this one purely for the fact that it went a little more into the conversion process into a Cyberman, a rather different and subtle process to the recent "Alternative Earth" ones portayed in the recent TV episode "Age Of Steel"...
The adventure itself is very well put together and I found it captivating from the start. The Cybermen themselves come across rather better than the "Revenge" ones on which they're based, with a fair amount of menace in their actions. The sixth Doctor too is written well, making me wish that Colin Baker had been given a fairer stab at his TV incarnation all those years ago (he's superb in the audio adventures he's done). The ArcHivist is also well realised, experiencing the ultimate "conclusion" to her research...
Well worth reading, if like me you're a fan without the money or physical space to collect all "tie in" novels.