Hewson, David. The Lizard's Bite. Set in Venice, Nic Costa, Gianni Peroni, exiled detectives from Rome, and their boss Leo Falcone are asked to "confirm the findings" of Venetian police when two members of a glass-making family are found dead after a foundry fire. Corruption and secrets help make the case more difficult and the ending has a definite twist. Not a bad mystery.