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.
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