Doctor Who and the Abominable Snowmen ..
"The Doctor has been to Det-Sen Monastery before, and expects the welcome of a lifetime. But the monastery is a very different place from when the Doctor last came. Fearing an attack at any moment by the legendary Yeti, the monks are prepared to defend themselves, and see the Doctor as a threat. The Doctor and his friends join forces with Travers, an English explorer out to prove the existence of the elusive abominable snowmen. But they soon discover that these Yeti are not the timid animals that Travers seeks. They are the unstoppable servants of an alien Intelligence."--Page 4 of cover.
Children's stories, Fiction, Comics & graphic novels, science fiction, Doctor who (fictitious character), fiction
Terrance Dicks, Terrance Dicks
Terrance Dicks is an English writer and former script editor, best known for his work in television and as the author of many popular children's books during the 1970s and 1980s.

His best known association during his television career was with Doctor Who, working as a writer and - from 1968 to 1974 - the program's script editor. He also adapted many of the televised stories into novelisations for Target Books.

Source: Wikipedia