2/3 through The Snowman by Jo Nesbo, which is excellent and not just a Swedish Rebus as I saw it described.
One niggle, though - I had to remove a sticker from the cover describing the author as 'The New Stieg Larsson, which given that Jo Nesbo started first, and indeed was known here first, I kind of object to. Mankell as the next Larsson? Peter Hoeg? Ibsen?