I Shall Wear Midnight by Terry Pratchett

Tiffany Aching is almost sixteen and is now a respected witch across the Chalk. She is taken aback when the death of a local dignitary seems to spark off a burst of hatred and fear towards witches. Her investigation reveals the return of an ancient force of evil, which unleashes bigotry and invective even from mild-mannered people, even from Tiffany's oldest friends and allies. Fortunately the Nac Mac Feegle are unaffected, and with their help Tiffany sets about restoring her reputation.I Shall Wear Midnight is the thirty-eighth Discworld novel and the fourth to focus on the character of Tiffany Aching, ostensibly the protagonist of a series of books "for younger readers." It's also one of the darker Discworld novels, tapping into the idea that there is a coil of communal hatred in people that can be periodically unleashed for no real reason, and a canny operator can direct that bile towards their own ends.The book is something of a Greatest Hits of the Ramtops, bringing in Granny…