Ahandful of grain is found in the pocket of a murdered businessman! RexFortescue, king of a financial empire, was sipping tea in his 'counting house' when he suffered an agonising and sudden death. On later inspection, the pockets of the deceased were found to contain traces of cereals. Yet, it was theincident in the parlour which confirmed Jane Marple's suspicion that here she was looking at a case of crime by rhyme!