A lurching skid, grinding tires — a resounding crash. And Richard Wentworth, hastening to investigate the wreck of the car he had been pursuing, found all its occupants dead — electrocuted before the moment of collision! Within a week the passengers of a crack New York Central train met a similar fate. Go with the Spider as he rides alone — human bait in a speeding death trap — on one of the nation’s doomed trains. Pierce with him the far-flung, gun-bristling cordon of an aroused Underworld — as he fights to save a hundred thousand Yankee lives!