Second paragraph of the third chapter:
Great age ought to have meant being greater and wiser than ever. It should have been about becoming the one to lead others on a wonderful quest.This was hilarious. A group of Cambridge academics calling themselves the Smudgelings listen to each others' writings, including the annoying Cleavis (who lives with his younger brother) and Reg Tyler, author of that great classic The True History of Planets, with its epic tales of "elves and trolls running about the place with nothing on their hairy feet." But the Doctor gets involved via a visit to a planet ruled by dogs; sinister forces have intervened with Professor Tyler and his book is now about poodles instead, as are the trilogy of blockbuster movies based on them. It then turns out that Noël Coward and an old acquaintance of the Doctor's are involved with it all. If you are not in a mood to take things too seriously, this is great fun.