Knots and Crosses - Ian Rankin

The modern classic which introduced the world to Detective John Rebus.

In Edinburgh young girls are being abducted and murdered. Rebus, already struggling to cope with the break-up of his family, is just one of the policemen hunting the killer. but when Rebus received messages – knotted string and crossed matches – it is clear the killer is taunting him with a message only he can solve.