What is the mood in the story collection, Mainly in Moonlight?

Gray creates an effective mood within his stories; some stories seem full of laughter, while others almost crackle with menace. One way he builds atmosphere is with dialogue. When the kidnapped princess of A Message in a Bottle, now rescued, is told that she is about to be magically whisked home, she says, "Not too much whisking, if your don't mind. It tangles my hair."

This sentence perfectly captures the rather frivolous intent of the story.

Plainly this is a tale that is headed for a happy ending.