and The Crackler himself – Hank Ryder. Ryder captures Tommy and tells him that he marked every door with a cross. Ryder's satisfaction is cut short when Marriot and the police burst into the room and arrest the gang. Tommy tells Ryder that when he was chalking the door, he emptied a bottle of valerian on the ground, thus attracting the neighbourhood cats to the smell. This was his pre-arranged sign to Albert who, on his orders, followed them to Whitechapel. The Sunningdale Mystery Tommy takes Tuppence to lunch at an ABC shop where he decides to mimic the tastes and habits of "The Old Man in the Corner" with Tuppence playing the part of Polly Burton. To test his abilities as this detective, he has brought along a cutting from a newspaper on the recent case known as the Sunningdale Mystery. Captain Anthony Sessle and Mr Hollaby, business partners and members of Sunningdale Golf Club, played a full round of golf on the course on a Wednesday and then decided to play a few more holes before it became dark. As they approached the tee on the seventh hole, Hollaby saw Sessle talking to a mysterious woman in a brown coat. They went off, talking, down a side path, and after a moment Sessle reappeared. Something had upset him for his game fell apart and two holes later Sessle gave up and walked off alone, presumably to his bungalow home. The existence of the woman in brown, Sessle's temporary departure with her, and his subsequent poor game were witnessed by two other members who were behind them on the course. The next morning, Sessle was found dead on the seventh tee, stabbed with a hatpin through the heart. The police found forensic evidence on the man that led them to trace a young woman called Doris Evans. She was arrested and told a story of meeting Sessle at a cinema. He invited her to his bungalow on a day when, as she learned later, his wife and servants would be away. On the day in question, the man met her as he arrived home from the golf course. He behaved strangely and then, suggesting a stroll, he took her to the golf course. On the seventh tee he suddenly became deranged and produced a revolver, wildly suggesting a suicide pact. Doris escaped his grasp and ran off. It has