Trade paperback. John Vance doesn't have a care in the world...except, perhaps, seeing his daughter Pamela married to the right man. Father and daughter live happily at Blacon Grange until one day the post brings a letter from an anonymous writer directing Vance to kill one Martin Stone - a man of dubious character with whom Vance had once been associated. Vance decides to ignore the ludicrous missive. But a phone 'call received shortly afterwards from Martin Stone leads John Vance into dangerous waters... The ensuing case is investigated by Curtis Burke of Scotland Yard, and Inspector Burke and his men must use all of their deductive skill to unravel a conspiracy whose roots go back to Mexico. 'Ralph Trevor' was the pseudonym used by James Reginald Wilmot for his numerous mystery novels. He also wrote romances under the pseudonym 'Frances Stewart'.