Banking on Death — Emma Lathen

When John Putnam Thatcher suspects a young co-worker is out of his league when called upon to locate a missing heir, the urbane banker decides to show the youngster the ropes. But at the end of this line is a knotty problem--the newly located and now very much dead Robert Schneider. Was the murder a result of his seedy lifestyle or his tangled family ties? And are the other heirs suspects or potential victims? The case only gets thornier as Thatcher delves into Schneider's past, but he is determined to fulfill his trust. He will settle the estate fairly--even if it means doing battle with a killer.