Doctor Who and the Terror of the Autons was written by Terrance Dicks and published by Target Books in 1975. It was based on a Doctor Who TV serial written by Robert Holmes. The book contains 6 full-page illustrations by Alan Willow. The cover illustration is by Peter Brookes (thanks to Alex Wilcock for this information).
I’ve never seen the TV version of this story, but as it contains an evil circus, The Master, malevolent murderous plastic dolls, a gigantic crab/spider/octopus beast, telephone wires of death and plastic daffodils that are programmed to kill each and every one of us, I expect it is the scariest thing ever broadcast on TV.
Despite all that, the most shocking moment comes on page 55.
I don’t think I’ve ever heard the term “garaged” before, and it’s making me shudder mildly with revulsion.
The illustrations that pop-up throughout the book are uniformly excellent. I would usually worry slightly about them spoilers, but the blurb does enough of that already.