One of my favorite books is a fantasy novel by Mary Brown, The Unlikely Ones. I like it so much that previously, I used the first sentence of the book as a creativity prompt. But, like all tales, there are more than just the first or last sentences in a book. And here is one of them.
In reading that sentence, I realized it was a great jumping-off point for any tale you wanted to tell. Have a go then, and let me know what you think of it as a creativity prompt.