These are thirteen further cases solved by DCI Forsyth as narrated by DS MacRae.How can a man escape from a locked room which has only one door and no windows when the door is under constant surveillance?How is it possible for a man to be murdered in front of several people but none of them to have any idea of how he was killed?Why is the only item stolen in a robbery a worthless bronze statuette of a horse?How can a man be poisoned at a cocktail party but no trace of the poison or how it was put into the glass be found?How is it possible for a man to enter a room that is constantly watched but for a differnt man to be found dead in the room at a later time?These and eight other baffling mysteries are solved by DCI ian Forsyth by the use of logical deduction