Murder at the President's Door by Elliott Roosevelt
It is 1933 and the President and the First Lady have just settled into the White House to face a nation in the depths of the Depression and world on the brink of war. But chaos erupts right in their own home when the body of a White House police officer is discovered at the foot of the President's bedroom door. Eleanor Roosevelt smells a rat, and knows that the crime must be solved internally without attracting the attention of the press of the FBI's J. Edgar Hoover. Eleanor enlists the confidential assistance of D.C. Lieutenant Edward Kennelly and faithful Secret Service agent Stanislaw Szczygiel to help her investigate. With their aid, she is able to keep up appearances at her many social engagements while managing the secret investigation and examining clues. Faced with a trail of evidence leading to stolen nights of passion in the White House, underground tunnels, insider trading, mob connections, and speakeasies, Eleanor uncovers suspicious characters and motives galore. But can she stop the killer before he makes another attempt on FDR's life.