This is book number 38 in the Discworld series.
Winner of the Andre Norton Award for Young Adult Science Fiction and Fantasy
By the beloved and bestselling grandmaster of fantasy, Sir Terry Pratchett, this is the fourth in a series of Discworld novels starring the young witch Tiffany Aching.
As the witch of the Chalk, Tiffany Aching performs the distinctly unglamorous work of caring for the needy. But someone--or something--is inciting fear, generating dark thoughts and angry murmurs against witches. Tiffany must find the source of unrest and defeat the evil at its root. Aided by the tiny-but-tough Wee Free Men, Tiffany faces a dire challenge, for if she falls, the whole Chalk falls with her. . . .
The five funny and fabulous Tiffany Aching adventures are:The Wee Free MenA Hat Full of SkyWintersmithI Shall Wear MidnightThe Shepherd's Crown
Tiffany's mentors, Granny Weatherwax and Nanny Ogg, star in the novels Equal Rites, Wyrd Sisters, Witches Abroad, Lords and Ladies, Maskerade, and Carpe Jugulum.
And don't miss Terry Pratchett's hilarious and wise Discworld novel The Amazing Maurice and His Educated Rodents.