A visiting king vanishes from his moving limousine on the way to a White House dinner, astounding the world. The nation is baffled. Authorities are helpless. The political world reels. What happened to King Goz? Doc Savage is called to Washington, D.C. to unravel the enigma of the missing monarch. But the mystery only darkens when the royal sword turns up—impaled in the bodies of victims discovered from the nation's capital to Doc Savage's locked safe in his New York City headquarters. Then the ghost of long-dead King Fausto appears—walking through solid walls and utterly impervious to bullets. Can the mighty Man of Bronze capture this unstoppable phantom? Are the two rulers one and the same? Or is the secret of The Whistling Wraith more sinister than anyone can imagine?