"I'm still guessing," the passenger ventured, when the last of the railroad distance signals had flashed to the rear. And then: "What's the frantic hurry, Billy?"
Starbuck was running with the muffler cut out, but now he cut it in and the roar of the motor sank to a humming murmur.
"I thought so," he remarked, turning his head to listen. "You didn't notice that police whistle just as we were leaving the court-house, did you?—nor the answers to it while we were dodging through the suburbs? Somebody has marked us down and passed the word, and now they're chasing us with a buzz-wagon. Don't you hear it?"
By this time Smith could hear the sputtering roar of the following car only too plainly.
"It's a big one," he commented. "You can't outrun it, Billy; and, besides, there is nowhere to run to in this direction."
Again Starbuck's reply translated itself into action. With a skilful touch of the controls he sent the car ahead at top speed, and for a matter of ten miles or more held a diminishing lead in the race through sheer good driving and an accurate knowledge of the road and its twistings and turnings. Smith knew little of the westward half of the Park which they were approaching, and the little was not encouraging. Beyond Little Butte and the old Wire Silver mine the road they were traversing would become a cart track in the mountains; and there was no outlet to the north save by means of the railroad bridge at Little Butte station.
Throughout the race the pursuers had been gradually gaining, and by the time the forested bulk of Little Butte was outlining itself against the clouded sky on the left, the headlights of the oncoming police car were in plain view to the rear. Worse still, there were three grade crossings of the railroad track just ahead in the stretch of road which rounded the toe of the mountain; and from somewhere up the valley and beyond the railroad bridge came the distance-softened whistle of a train.
Starbuck set a high mark for himself as a courageous driver of motor-cars when he came to the last of the three road crossings. Jerking the car around sharply at the instant of track-crossing, he headed straight out over the ties for the railroad bridge. It was a courting of death. To drive the bridge at racing speed was hazardous enough, but to drive it thus in the face of a down-coming train seemed nothing less than madness.
It was after the car had shot into the first of the three bridge spans that the pursuers pulled up and opened fire. Starbuck bent lower over his wheel, and Smith clutched for handholds. Far up the track on the north side of the river a headlight flashed in the darkness, and the hoarse blast of a locomotive, whistling for the bridge, echoed and re-echoed among the hills.
Starbuck, tortured because he could not remember what sort of an approach the railway track made to the bridge on the farther side, drove for his life. With the bridge fairly crossed he found himself on a high embankment; and the oncoming train was now less than half a mile away. To turn out on the embankment was to hurl the car to certain destruction. To hold on was to take a hazardous chance of colliding with the train. Somewhere beyond the bridge approach there was a road; so much Starbuck could recall. If they could reach its crossing before the collision should come——