This just falls short of a perfect score just because I compare it to my 5 star books and like it just that smidgeon less. But it is good, oh ho, so good. Terry Pratchett and Neil Gaiman is like Tim Burton and Johnny Depp in Edward Scissorhands. 

It combines the clever humour of Pratchett with the brilliantly gothic imagination of Gaiman. Reading the interview at the end made me very sad though. They had toyed with the idea of a sequel that can never happen now.