Loyal Companion

Some people live their lives at one point or another with an animal companion. Those people can recount some of the most entertaining stories about their adventures together. However, while in real life we are limited to animals or AI as far as non-human companions go, authors have actually delighted us from time immemorial with stories about non-human companions of infinite varieties. And when reading, it's a great feeling when you are in good company.

Add books you've read where a primary character has a non-human companion.