A gripping standalone thriller by the New York Times bestselling author of the Rizzoli & Isles seriesINTERNATIONAL THRILLER WRITERS AWARD FINALIST • NAMED ONE OF THE BEST BOOKS OF THE YEAR BY LOS ANGELES TIMES AND SUSPENSE MAGAZINE   In a shadowy antiques shop in Rome, violinist Julia Ansdell happens upon a curious piece of music—the Incendio waltz—and is immediately entranced by its unusual composition. Full of passion, torment, and chilling beauty, and seemingly unknown to