This great whodunit, written by Eleanor and FDR's son, involves Mrs Roosevelt as the Miss Marple of the story, investigating and trying to solve a murder despite the initial reluctance of DC law enforcement, the FBI, and Scotland Yard to allow her into their privileged circle. Eleanor, not one to be left out when she feels a mission, is determined to prove her assistant's innocence of both the murder and an earlier jewel heist in England, and not even J. Edgar Hoover can stop her.
The author makes clear that his mother never was involved in a murder investigation, but he wanted to display lesser-known aspects of her character, and he shows her to be an intelligent, caring, and determined woman. To the endless frustration of her Secret Service detail, and the amusement of her husband, Eleanor visits the suspect in the DC jail, meets with owners of illegal casinos and strippers, dances diplomatically around the victim's father, a Congressman and political boss, and otherwise is in the center of the action, and the danger.
All this takes place against the stormy background of impending war, with Hitler seeking rapprochement with Stalin in order to free himself to invade Poland, and the American and British governments trying to figure out how to forestall Armageddon in 1939. We all know how that worked out, but the story shows a fun personal view of both Eleanor and Franklin, and keeps the mystery tight until the very end.