Gregory Maguire - What-the-Dickens: The Story of a Rogue Tooth Fairy

A bit of a throwaway book from Maguire, a novella probably nominally aimed at children, though with some pretty adult themes - imagines tooth fairies as a species which lives on the margins of human society, living in warring communities and collecting teeth for reasons of their own (which have something to do with finding meaning in their own lives through giving something to humans).