John Mannering's wife Lorna had painted what critics considered the picture of the Royal Academy year. Perhaps this was why she wanted her husband to give up his career as the Baron, cracks man and jewel thief and Robin Hood of the London underworld. Perhaps she thought it would be more suitable for him to open a very small, very select gallery.one like Quinn's, the West End antique and curio shop with the curious history, w h i c h j u st happened to be for sale. But when John Mannering went with money in his hand to buy, he ran into mystery and trouble. Soon New Scotland Yard was wondering if the Baron was up to his old tricks again.