Originally published: London : Skeffington & Son, 1934.
When Miss Pongleton is found murdered on the stairs of Belsize Park station, her fellow-boarders in the Frampton Hotel are not overwhelmed with grief at the death of a tiresome old woman. But they all have their theories about the identity of the murderer, and help to unravel the mystery of who killed the wealthy Pongle . Several of her fellow residents even Tuppy the terrier have a part to play in the events that lead to a dramatic arrest. This classic mystery novel is set in and around the Northern Line of the London Underground.