The Crime at Black Dudley, also known in the United States as The Black Dudley Murder, is a crime novel by Margery Allingham, first published in 1929, in the United Kingdom by Jarrolds, London and in the United States by Doubleday Doran, New York. It introduces Albert Campion, her misleadingly vapid detective, who would go on to appear in another 18 novels and many short stories over the next 30 years. Plot introduction A house party is under way at the remote Black Dudley, and among the guests are some very shady characters. As they merrily recreate the ritual of the Black Dudley Dagger, Colonel Coombe dies. Pathologist George Abbershaw suspects foul play, and when a vital item is mislaid, a gang of crooks hold the guests hostage. Will they escape the house – what did happen to the Colonel – and just who is the mysterious Mr Campion? Plot summary The story begins as the guests assemble for dinner on the first night of a house party. Black Dudley is a remote, ancient and sprawling manor house with a long and complex history, its numerous changes of use resulting in plenty of hidden rooms and secret passages. The pile is owned by the family of Wyatt Petrie, a popular young academic, and inhabited by his uncle by marriage, Colonel Coombe, a sickly recluse who wears a mask to cover unsightly scars. The bulk of the guests are young friends of Petrie – among them our red-headed hero George Abbershaw, pathologist and occasional consultant to Scotland Yard, and similarly flame-haired Meggie, whom he shyly admires. The Colonel's medic Doctor White Whitby, and two of his associates, a shifty Englishman named Gideon and an imposing but silent foreigner going by the name of Benjamin Dawlish, are also present. So is one Albert Campion, garrulous and affable, but, George soon learns, unknown to either Petrie or the Colonel. After dinner, the guests notice a sinister, bejewelled dagger hanging above the fireplace; Petrie tells them a story of its ancient origins in the family, and mentions a ritual involving the dagger being passed from hand to hand round the darkened house. The guests are keen to play the game, so the servants are dismissed, the lights extinguished and the ritual begins. Abbershaw, not excited at the prospect of people waving daggers around in the dark, slips outside to check on his car; in