Portrait of an Unknown Woman by Daniel Silva is the 22nd book in the Gabriel Allon series, where the retired Israeli spy is investigating an art forgery ring
reluctant Israeli spy, Gabriel Allon, is joined by a world famous woman, this time though she is a violinist named Anna Rolfe, on his adventures
The Kill Artist is a well written spy novel, filled with details in all the right places as well as several characters from Silva’s previous novels.