Title: Doctor Who - The Krotons
First published: 1985
Description: Number 99 in the Doctor Who Library

According to legend, many thousands of years ago strange creatures came from the skies and settled on the planet of the Gonds. They were the Krotons.

And now, every year, the Gond's two greatest scholars are chosen to become the companions of the Krotons. They disappear and are never seen again, but it is held to be a great honour; for only the finest are chosen.

But when the Doctor, Jamie and Zoe arrive on the planet, they discover the true, evil purpose of the aliens and find out what it really means to be the companions of the Krotons...

Doctor Who - The Krotons, featuring Patrick Troughton in the role of the Doctor, was broadcast in 1968 and was written by Robert Holmes. This novelization is by Terrance Dicks, who has novelized over sixty Doctor Who television stories; at the time The Krotons was broadcast he was the script editor of the series.
People: The Doctor