Magdalen Nabb: Death in Springtime (USA 2005)
From the Publisher:
One of the girls, a Norwegian university student, turns up in Pontino, a village in the Chianti hills, where she is hospitalized for a concussion, a leg wound and possible pneumonia. She says she has been released by the kidnappers so she can make contact; the other kidnap victim, an American girl, is being held for ransom. But the marshal thinks she's lying. Kidnapping has become a local racket. It is up to him to save the young American and put a stop to a flourishing criminal enterprise.
Magdalen Nabb: Death in Springtime. A Marshal Guarnaccia Investigation. Soho Press, ISBN: 156947415X (October, 2005), 165 p., $10.00.