John Cavendish

John Cavendish is a character in The Mysterious Affair at Styles, Agatha Christie's first novel. The elder stepson of Emily Inglethorp from her first husband's earlier marriage and brother of Lawrence, he is a former barrister turned country squire who has known Arthur Hastings for many years. He invites Hastings, on sick leave from the Western Front, to stay at Styles Court in Essex, and his marriage to his wife Mary is going through difficulties.