The Wee Free Men by Terry Pratchett is a fantasy novel featuring nine-year-old Tiffany Aching, a young witch-to-be who must rescue her brother from the Queen of the Elves. With a frying pan and the help of the Nac Mac Feegle—tiny, blue, Scottish-accented, rowdy pictsies—she battles fairy-tale monsters, including grimhounds and a headless horseman.