It's hard to grow up normally when Grandfather rides a white horse and wields a scythe - especially when you have to take over the family business, and everyone mistakes you for the Tooth Fairy. And especially when you have to face the new and addictive music that has entered Discworld.

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.

It's a hot midsummer night. The crop circles are turning up everywhere, and Magrat the witch is going to be married in the morning - everything ought to be going like a dream. Unfortunately, things aren't about to run smoothly.

IT'S A RAT-EAT-RAT WORLD . . . Every town on Discworld knows the stories about rats and pipers, and Maurice - a streetwise tomcat - leads a band of educated ratty friends (and a stupid kid) on a nice little earner. Piper plus rats equals lots and lots of money. Until they run across someone playing a different tune. Now he and his rats must learn a new concept: evil . . .

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...

Nine-year-old Tiffany Aching thinks her Granny Aching - a wise shepherd - might have been a witch, but now Granny Aching is dead and it's up to Tiffany to work it all out when strange things begin happening: a fairy-tale monster in the stream, a headless horseman and, strangest of all, the tiny blue men in kilts, the Wee Free Men, who have come looking for the new 'hag'. These are the Nac Mac Feegles, the pictsies, who like nothing better than thievin',...