A weathercock has risen from the sea of Discworld, a new land has surfaced, and so have old feuds. Commander Vimes of the Ankh-Morpork City Watch has got only a few hours to deal with a crime so big that there's no law against it.

Death is missing, leaving Discworld in chaos. Ghosts and poltergeists fill the land, and dead rights activist Reg Shoe suddenly has more work than he ever dreamed of. The task of saving the day is left to Windle and Discworld's undead.

Koom Valley? That was where the trolls ambushed the dwarfs, or the dwarfs ambushed the trolls. Anyway, it was far away and a long time ago. But if Commander Sam Vimes of Ankh-Morpork City Watch doesn't solve the case of a murdered dwarf, he could see the whole battle again, fought right outside his office.

A real witch never casually steps out of her body, leaving it empty. Eleven-year-old Tiffany does. And there's something just waiting for a handy body to take over. Something ancient and horrible, which can't die . . . Wise, witty and wonderful, A Hat Full of Sky is Terry Pratchett's second novel about Tiffany and the Wee Free Men - the rowdiest, toughest, smelliest bunch of fairies ever. They'll fight anything. And even they might not be enough to...

'Things have to come to an end, see. That's how it works when you turn the world into stories. You should never have done that. You shouldn't treat people like they was characters, like they was things. But if you do, then you've got to know where the story ends.' It seemed an easy job... After all, how difficult could it be to make sure that a servant girl doesn't marry a prince? Quite hard, actually, even for the witches Granny Weatherwax, Nanny...

Cameras roll on the fantastic Discworld when the alchemists discover the magic of the silver screen. But what is the dark secret of Holy Wood hill? As the alien cliches of Tinsel Town pour in, it's up to Discworld's first film stars to find out.

Sir Terry Pratchett's final Discworld novel, which features the witch Tiffany Aching.