Parthian Shot (Marcus Corvinus)

When a delegation from the High King of Parthia arrives in Rome, and a member-in-exile of the Parthian royal family is attacked by knifemen, Corvinus finds himself caught up in the murky world of backstairs diplomacy, espionage, and general political skulduggery. Particularly when the delegation's leader is found dead in bed with his throat cut...The ninth book in the Marcus Corvinus series.