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In the novel The Sittaford Mystery, Constable Graves is a policeman in Exhampton. Major Burnaby approached him when he could not get a response after knocking on the door of the house of Captain Trevelyan. Graves called the house and got no response either. He then fetched Dr Warren and the three got into the house through an open window and discovered the body of the captain.

Graves' sister-in-law, Amy, is the chambermaid at The Three Crowns.

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