Vendetta for the Saint — Leslie Charteris

The Saint is on holiday in Naples when a brawl interrupts his lunch; a tweedy English tourist has casually addressed an Italian as Dino Cartelli - provoking the paunchy individual so named to set his hulking henchman on the bewildered Briton. The Saint intervenes, and soon the disagreement is all but forgotten...until the following morning's newspaper headlines reveal that the Englishman has been murdered. Soon the Robin Hood of modern crime is pitted against the archevil, centuries-old traditions of the Mafia....