Pirate Blood by Eugenio Pochini

Golden age of piracy. Johnny spends his childhood in Port Royal. Its alleys are populated with adventurers, throat cutters and prostitutes: everyone is looking for fortune among the inns and the decks. The boy finds out once the existence of a mysterious treasure..and everything changes suddenly. Forced to join the terrible pirate Barbanera's crew, Johnny will have to face a lot of dangers, between cruel boardings, scaring native tribes and dark omens, putting his life at risk and trying to fulfill his destiny.