Roverandom

It's a tale you don't hear about too often, but it is a good one.

Written by J.R.R. Tolkien, it's the story of a little dog named Rover and the adventures he has after being turned into a toy by a wizard.

An easy read, if you like other books by Tolkien and fairy tales, I recommend you give it a go. The places and creatures he describes are very imaginative and it contains some lovely ideas. For example: a seagull that flies to the moon with messages for the wizard who lives there with a little white flying dog.
I don't want to say too much because it's lovelier if you read it for yourself.

The edition at my house even has illustrations by Tolkien himself!

I find his depictions of mermaids interesting because one of them married a wizard and they moved to the land. He mentions mermaid tails with aversion. He remarks on her "deplorable" tail. Having a fish tail would certainly be shocking for humans to see, but he seems to disdain them for some reason in the midst of all the unusual things that are going on. Is he just projecting the views of the two-legged people's society (from the story) into his narration, or is it something else?  

Brave - Transformations to Transform Fate

Brave has a rather unusual plot line -for a movie.

The story that most reminds me of this plot line appears, interestingly enough, in The Little House on the Highland series. These are stories about Laura Ingalls Wilder's great-grandmother, Martha, who grew up in Scotland. In a tale that little Martha supposedly heard as a child, a girl is supposed to marry a man she doesn't love at the order of her father. She runs off to the church in despair and overhears two mice talking about her.  One says to the other that what she really needs is such and such a fix. She takes their words to heart and performs the spell, then she goes home to bed. The next morning, her wedding day, the detested suitor arrives. She appears, to the surprise of all, with the head of dog. The suitor begins to rail at her father for cheating him and says he won't have her. Meanwhile the man she loves arrives and he takes her in his arms despite her dog's head. Her head turns back to normal and she weds the man she loves and who truly loves her.

Like Brave, the spell worked an unexpected animal transformation but in the end, the desired outcome arrives. It just arrives in a way no one thought it would, via their reactions to the transformation. 

Picture from Karen's Whimsey