'This book dances with sunlight and colour, faded patinas and shifting standards, with humour and knowledge making easy companions' Mail on Sunday The monastery of San Giovanni has few treasures -- only a painting doubtfully attributed to Caravaggio. So Flavia di Stefano of Rome's Art Squad is surprised to receive a tip-off that a raid is being planned. The raid happens, but the thieves are disturbed and snatch the wrong painting, a curious icon of the Madonna, remarkable only for the affection in which it is held by the local population. Or is this what the thieves wanted all along? Does the legend of the icon's miraculous powers hold any clue? And who murdered the French dealer found in th