Title: Death of a Godfather - Thomas Perry - book
Summary :
When you, like Bernie Lupus, manage the mafia's accounts alone for thirty years, and then disappear, you expect a lot of people at your funeral. Especially if the millions of dollars you were responsible for vanish at the same time. So, the day Lupus is murdered, the most determined mobsters set out to hunt down Rita Shelford, his housekeeper. Just in case "the Elephant," who kept no written records of his operations, had confided some secrets to her...
But Rita has decided to slip away in turn: she calls on the talents of Jane Whitefield, a mixed-race Indian camouflage specialist. The young woman had, however, retired from the circuit to live peacefully with her husband. Jane will return to service, determined to protect Rita - but also to get her hands on the missing loot, under certain conditions...