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All over the Midwest, cars and trucks were crashing—stopped in their tracks by an inexplicable force! Had some unseen power targeted America’s automotive industry—or was something more sinister at stake?

Summoned to solve the mystery, Doc Savage and his intrepid men follow a trail of terror that winds through the continental United States like a constricting serpent of senseless destruction.

From the nation’s car capital to the North Pole, the Man of Bronze races to stave off a strangely familiar menace only to confront a completely unexpected foe—the enigmatic Baron in Black!