Gaudy Night

When Harriet Vane attends her Oxford reunion, known as the 'Gaudy', the prim academic setting is haunted by a rash of bizarre pranks: scrawled obscenities, burnt effigies and poison-pen letters - including one that says, 'Ask your boyfriend with the title if he likes arsenic in his soup.' Some of the notes threaten murder and one of them involves a long Latin quotation, which makes Harriet suspect that the perpetrator is probably a member of the Senior Common Room. But which of the apparent...