I wouldn't dream of giving away the ending, which was not at all what I expected it to be -- great mix of character development, police procedural and atmosphere. Want to read more by this guy!

Probably my favorite Pratchett -- (in addition to anything with Sam Vimes).

This examination of good and evil is superb, with a side-swipe on the stupidity of "niceness". Granny's journey into light and darkness is pure theology, and it's good to be reminded that evil is something that seems so enticing that we want to ignore the fact that it sucks blood.