The Tudor Garden Mystery

When one of Sir Richard Alperton's house guests is murdered in the Tudor Garden at Grandchester Manor, police suspicion falls upon his son Robert. In desperation, Sir Richard turns to his friends Felix Heron and his wife Thelma to help clear his son's name. To the initial annoyance of the police, the private investigator and his wife join the house guests and set to work to solve the mystery. But when two more murders rapidly follow, it looks like the detective duo may finally have met their match...