A gripping mystery in which John Mannering flies out to India to help an old friend. There is a Maharajah who seeks credit, a dealer in jewels whose main interest is drugs, and an attempted detention. The Baron and his friend both have enemies — dealing not just in diamonds, but also death.

John Mannering (aka ‘The Baron’), a retired jewel thief, is tempted back into his former occupation by a strange Frenchman who visits him. He becomes involved in a search for a famous jewel collection. However, he finds himself at odds with his old friend Supt. Bristow of Scotland Yard, and on the run as ‘The Baron’ once again .....

Every social call brings Richard Rollison, aka ‘The Toff’, closer to death in this thriller that is dominated by characters from all ends of the spectrum. As ‘The Toff’ leaves his calling cards a killer’s pace grows and his confidence with it. Can ‘The Toff’ escape death himself and at the same time unravel the mystery?

John Mannering, retired jewel thief known as ‘The Baron’, is offered a set of diamonds which have been stolen from the Louvre. He faces a dangerous dilemma; the jewels may lead him to a murderer, but he is also tempted to return to his old ways. He is lead into a dangerous adventure, in which he is kidnapped and threatened with death.

Now that he is retired as a master ‘cracksman’, John Mannering (aka ‘The Baron’) is sometimes consulted by Scotland Yard when they have a difficult case. When a jeweller is robbed, the Baron’s opinion is sought. He is already occupied with another case, but then discovers that the two are connected, and he is himself the chief suspect.

Retired gentleman cracksman, John Mannering, (aka ‘The Baron’), is faced with trying to save the life of a man accused of murder. The suspense is literally killing and even ‘The Baron’ is not sure of the man’s innocence. He ends up in danger of being suspected as an accomplice. There is an unexpected climax to this mystery.

John Mannering (aka ‘The Baron’) bought the Dellamont Emeralds. But he chose to ignore their history of misfortune. Then things began to happen - an attempted robbery of the famous jewels; and a quarrel with Lorna Fauntley. Seemingly separate incidents, yet all connected. The strangest thing of all was that someone was impersonating the Baron ....

John Mannering ('The Baron') makes his first appearance. Lord Fauntley shows off both his daughter and the security surrounding his precious jewels. Mannering is attracted to both. Money is tight and he plans a burglary, but this fails and unexpected consequences result. One of the many twists occurs as the police seek Mannering's help. . .

John Mannering (‘The Baron’) is called in by Scotland Yard’s Superintendent Bristow to help catch the mysterious jewel thief ‘The Shadow’. No one knows the thief’s identity, but he has managed to pull off many high profile robberies. However, as Mannering proceeds to track down the target, he finds the pursuer becomes the pursued . . . .

John Mannering (aka ‘The Baron’) pulled his scarf up so as to hide his face. The finest jewel thief in London was utilising all of his skills to nail a crooked Solicitor. Mannering’s friend could be ruined by documents contained in the lawyer’s strong-room and so he risks all, especially his freedom, to get them back.