This detective vel is much more than interesting. The numerous characters are well differentiated, and include one of the most feckless, exasperating and lifelike literary men that ever confused a trail. Dorothy L. Sayers, Sunday Times, 1934 When Miss Pongleton is found murdered on the stairs of Belsize Park station, her fellow-boarders in the Frampton Hotel are t 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 vel is set in and around the Northern Line of the London Underground. It is w republished for the first time since the 1930s, with an introduction by award-winning crime writer Stephen Booth.