Conveniently this murder takes place just as school holidays are beginning and Carolus' cousin Fay has alerted him to the need for his help in solving the mystery. Carolus and his 'man and woman', Mr. & Mrs. Sticks, head for Blessington-on-Sea to help dig up clues as to who killed the hateful Mrs. Bomberger and buried her neck deep in the sand. One of Carolus' students meets him there and aids in the investigation. Not able to get a true statement out of any of the suspects, he has to piece together all the lies to come up with the solution.