Corpse Marker brings us the dreaded robots that had been seen in the episode, "The Robots of Death" together with the Fourth Doctor. Beyond featuring similar robots, this story was actually positioned as a direct sequel to that episode. It was certainly an interesting direction to take (somewhat similar to Scales of Injustice). But beyond just being a sequel story, it actually takes place very shortly after the episode itself.
The book certainly tried to capture the feel of a true Doctor Who television adventure and I could totally see the progression from each act of the story to the other. The final reveal as a whole was a little underwhelming though and things ended somewhat abruptly for me.