I Shall Wear Midnight by Terry Pratchett

I Shall Wear Midnight : Paperback : Penguin Random House Children's UK : 9780552555593 : 0552555592 : 04 Jul 2011 : . Somewhere - some time - there's a tangled ball of evil and spite, of hatred and malice, that has woken up. And it's waking up all the old stories too - stories about evil old witches .