There're a lot of edges, more than people know. Between life and death, this world and the next ...an' they need watchin' ...'There's trouble on the Wold, its boundaries weak since Granny Aching - the hag o' the hills - died. Now all there is to stop the nightmares from taking over is young Tiffany Aching, who's learning fast about duty, about responsibility and about who she is and what she is. Luckily she's got the help of the Nac Mac Feegle - a band of tiny, disreputable pictsies known as the Wee Free Men. They'll fight anything ...