"I don't know. I supposed he was in here with you. Or maybe he's out on the rear platform."

The three of them went to the rear, pa.s.sing the private secretary comfortably asleep in his wicker chair. When they stepped out upon the recessed observation platform they found it empty.

"He must have suspected something and dropped off in the yard or at the shops," said Halkett. And at the saying of it he shrank back involuntarily and added: "Ah! Look at that, will you?"

The car had just thundered past another station, and Callahan had underrun one more stop-signal at full speed. At the same instant Tischer's headlight swung into view, half blinding them with its glare.

"What is that following us?" asked Bucks.

"It's the fast mail," said Halkett.

Guilford turned livid and caught at the hand-rail.

"S-s-say--are you sure of that?" he gasped.

"Of course: it was an hour and thirty-five minutes late, and we are on its time."

"Then we can't stop unless somebody throws us on a siding!" quavered the receiver, who had a small spirit in a large body. "I told M'Tosh to give the mail orders to make up her lost time or I'd fire the engineer--told him to cut out all the stops this side of Agua Caliente!"

"That's what you get for your infernal meddling!" snapped Halkett. In catastrophic moments many barriers go down; deference to superior officers among the earliest.

But the master spirit of the junto was still cool and collected.

"This is no time to quarrel," he said. "The thing to be done is to stop this train without getting ourselves ripped open by that fellow behind the headlight yonder. The stop-signals prove that Hawk and the others are doing their best, but we must do ours. What do you say, Halkett?"

"There is only one thing," replied the superintendent; "we've got to make the Irishman run ahead fast enough and far enough to give us room to stop or take a siding."

The governor planned it in a few curt sentences. Was there a weapon to be had? Danforth, the private secretary, roused from his nap in the wicker chair, was able to produce a serviceable revolver. Two minutes later, the sleep still tingling in his nerves to augment another tingling less pleasurable, the secretary had spanned the terrible gap separating the car from the engine and was making his way over the coal, fluttering his handkerchief in token of his peaceful intentions.

He was charged with a message to Callahan, mandatory in its first form, and bribe-promising in its second; and he was covered from the forward vestibule of the private car by the revolver in the hands of a resolute and determined state executive.

"One of them's comin' ahead over the coal," warned James Shovel; and Callahan found his hammer.

"Run ahead an' take a siding, is ut?" he shouted, glaring down on the messenger. "I have me ordhers fr'm betther men than thim that sint you. Go back an' tell thim so."

"You'll be paid if you do, and you'll be shot if you don't," yelled the secretary, persuasively.

"Tell the boss he can't shoot two av us to wanst; an' the wan that's left'll slap on the air," was Callahan's answer; and he slacked off a little to bring the following train within easy striking distance.

Danforth went painfully and carefully back with this defiance, and while he was bridging the nerve-trying gap, another station with the stop-board down and red lights frantically swinging was pa.s.sed with a roar and a whistle shriek.

"Fwhat are they doing now?" called Callahan to his fireman.

"They've gone inside again," was the reply.

"Go back an' thry the tank," was the command; and Jimmy Shovel climbed over the coal and let himself down feet foremost into the manhole. When he slid back to the footplate his legs were wet to the mid shin.

"It's only up to there," he reported, measuring with his hand.

Callahan looked at his watch. There was yet a full hour's run ahead of him, and there was no more than a scant foot of water in the tank with which to make it.

Thereafter he forgot the Naught-seven, and whatever menace it held for him, and was concerned chiefly with the thing mechanical. Would the water last him through? He had once made one hundred and seventy miles on a special run with the 1010 without refilling his tank; but that was with the light engine alone. Now he had the private car behind him, and it seemed at times to pull with all the drag of a heavy train.

But one expedient remained, and that carried with it the risk of his life.

An engine, not overburdened, uses less water proportionately to miles run as the speed is increased. He could outpace the safe-guarding mail, save water--and take the chance of being shot in the back from the forward vestibule of the Naught-seven when he had gained lead enough to make a main-line stop safe for the men behind him.

Callahan thought once of the child mothered by the Sisters of Loretto in the convent at the capital, shut his eyes to that and to all things extraneous, and sent the 1010 about her business. At the first reversed curve he hung out of his window for a backward look. Tischer's headlight had disappeared and his protection was gone.

On the rear platform of the private car four men watched the threatening second section fade into the night.

"Our man has thought better of it," said the governor, marking the increased speed and the disappearance of the menacing headlight.

Guilford's sigh of relief was almost a groan.

"My G.o.d!" he said; "it makes me cold to think what might happen if he should pull us over into the other State!"

But Halkett was still smarting from the indignities put upon him, and his comment was a vindictive threat.

"I'll send that d.a.m.ned Irishman over the road for this, if it is the last thing I ever do!" he declared; and he confirmed it with an oath.

But Callahan was getting his punishment as he went along. He had scarcely settled the 1010 into her gait for the final run against the failing water supply when another station came in sight. It was a small cattle town, and in addition to the swinging red lights and a huge bonfire to illuminate the yards, the obstructionists had torn down the loading corral and were piling the lumber on the track.

Once again Callahan's nerve flickered, and he shut off the steam. But before it was too late he reflected that the barrier was meant only to scare him into stopping. One minute later the air was full of flying splinters, and that danger was pa.s.sed. But one of the broken planks came through the cab window, missing the engineer by no more than a hand's-breadth. And the shower of splinters, sucked in by the whirl of the train, broke gla.s.s in the private car and sprinkled the quartet on the platform with split kindling and wreckage.

"What was that?" gasped the receiver.

Halkett pointed to the bonfire, receding like a fading star in the rearward distance.

"Our friends are beginning to throw stones, since clods won't stop him."

he said.

Bucks shook his head.

"If that is the case, we'll have to be doing something on our own account.

The next obstruction may derail us."

Halkett stepped into the car and pulled the cord of the automatic air.

"No good," he muttered. "The Irishman bled our tank before he started.

Help me set the hand brakes, a couple of you."

Danforth and the governor took hold of the brake wheel with him, and for a minute or two the terrible speed slackened a little. Then some part of the disused hand-gear gave way under the three-man strain and that hope was gone.

"There's one thing left," said the superintendent, indomitable to the last. "We'll uncouple and let him drop us behind."

The s.p.a.ce in the forward vestibule was narrow and cramped, and with the strain of the dragging car to make the pin stick, it took two of them lying flat, waiting for the back-surging moment and wiggling it for slack, to pull it. The coupling dropped out of the hook and the engine shot ahead to the length of the safety-chains; thus far, but no farther.

Halkett stood up.