When a university librarian is mugged and robbed of his winnings outside a casino, DS Alistair MacRae assumes that it was an opportunistic crime, But when other incidents involving him occur, MacRae wonders whether there are other reasons for the crime When the man is murdered, MacRae is sure he knows who is responsible. But DCI Ian Forsyth has a better solution arrived at by the use of logical deduction.

When the fingerprints from the front man in a financial scam are found at the scene of a murder, it is assumed that the victim was his immediate superior in the scam. When two further...