"No; I tell you," went on Alex suddenly. "We'll try one of the old tile ovens on the other side of the yard. Perhaps we can box ourselves up in one of them."

There was no time to lose, for the clearing was now blue with smoke, and climbing hastily to the ground, the boys were again off on the run. They reached the group of round-topped ovens.

A glance showed that their hope was futile. All about the furnaces were thickets of dead weeds, and a short distance away, and directly to windward, was a huge pile of light brushwood.

Promptly Alex turned back. "We would be smothered or roasted in five minutes," he declared. "No. It is the water, or nothing. Perhaps we can work it by floating on a log."

As they approached the river, the boys crossed the old yard siding.

Stumbling over the rails, partially blinded with the now stinging smoke, both suddenly ran into something, and fell in a heap. Scrambling to their feet, they found an old push-car, with low sides.

Alex uttered a cry. "Jack, why can't we make a dash down the spur with this old car--pushing it? And say, couldn't we lift it onto the main-line rails, and run all the way home?"

Jack hesitated. "Look there," he said, pointing to the wall of smoke into which the track disappeared a hundred yards away. "And wouldn't there be burned-down trees across the rails?"

"No; not yet. The fire hasn't been burning long enough. And as to the smoke, it'll soon be just as bad on the river," Alex declared.

"All right. Let us try it. But first, let us jump in the river and get good and wet," suggested Jack.

"Good idea! Come on!

"Or; wait!" exclaimed Alex. "Another idea. There is an old rubbish pile just over here, and a lot of tin cans. Let us get some, and fill them with water--to keep our handkerchiefs wet, to breathe through."

They turned aside, quickly found and secured several empty cans each, and ran on. Reaching the water, they dropped the cans on the bank, and plunged in bodily.

As Alex had said, the water was intensely cold, and despite the relief to their eyes from the smoke, they clambered out again immediately, hastily filled the tins, and only pausing to tie their dripping handkerchiefs over their mouths, dashed back for the siding.

"You help me start her, Jack," directed Alex as they placed the cans of water in the forward end of the car, "and when we reach the edge of the woods, jump in. I'll run it the first spell, then you can relieve me.

That way we can keep it going at a good clip.

"All ready? Let her go!" With bowed heads they threw themselves against the little car, the rusty wheels began to screech; rapidly they gained headway, and soon were on the run.

They neared the smoke-hidden border of the clearing.

[Ill.u.s.tration: WITH A RUSH THEY DASHED INTO THE WALL OF SMOKE.]

"Jump in, Jack!" cried Alex. Jack sprang over the tail-board and threw himself flat on his face, and with a rush they dashed into the wall of smoke.

Rumbling and screeching, the car sped onward. Alex began to feel the heat. Suddenly it swept over them like the breath of a furnace, and there came a mighty roar.

They were in the midst of the flames.

"Are you all right, Alex?" cried Jack.

"Yes." A moment later, however, Alex too sprang into the car, as he did so tearing off his handkerchief and stuffing it into one of the water-cans. "I couldn't have held on another minute," he choked. "I believe the handkerchief was burning."

Jack prepared to climb out to take Alex's place.

"No! Lay still!" interposed Alex. "The car will run by itself here.

There's a down grade."

Jack dropped back thankfully. "Isn't it awful," he gasped. "My eyes are paining as though they would burst."

On rushed the car down the roaring, crackling tunnel of flames, groaning and screeching like a mad thing. Tongues of fire began to lick over the sides of the car at the cringing boys within.

Faster the car went. Presently it began to rock. "She'll be off the track!" cried Jack at last.

"Lie farther over!" directed Alex above the roar, himself moving in the opposite direction. The rearrangement steadied the car slightly, but still it rocked and plunged on the long unused track so that at times the boys' hearts leaped into their throats.

The heat was now terrific. The floor and sides of the car began to blister and crack.

"We can't stand it much longer! We'll be cooked!" coughed Jack.

"Empty one of the cans over your head," Alex shouted. "Keep up a few minutes longer, and we will be over the worst. It is the leaves and brush that are making the heat, and we'll soon be where they have burned out.

"I think we are over the worst of it now," he announced a moment later.

"There's not so much crackling; and I don't think it is so hot."

Simultaneously the car began to leap less wildly, then perceptibly to slow up. Alex at once prepared to climb out again. "I'll give her another run," he said. But promptly Jack pressed him back. "No you don't! I'm going to take my turn." And in another moment he was out in the full glare of the still shrivelling heat, rushing the car on at the top of his speed. A hundred yards he drove it, and scrambled back within, gasping for breath. Emptying one of the remaining cans over Jack's head, Alex sprang out and took his place.

A moment after, they struck a slight up grade. Alex uttered a joyful shout. "Only a short run farther, Jack, and we're out of the woods!"

But immediately he followed this glad announcement with one of new alarm.

"The washout! I'd forgotten it! It's just ahead! The rails there almost hang in the air!"

In a panic Alex slowed up. Jack climbed out beside him. "Let us rush it,"

he suggested. "The rails may hold--like a bridge. We're not heavy. And we may as well take one more chance."

Alex debated. "All right! Come on! And jump quick when I say! I think I can tell when we are near it."

Once more the car was flying onward through the haze.

"Here we come! _Now!_"

With a bound Jack was back in the car. Alex made a final rush, and sprang after. The car dipped forward and sideways, a breathless instant seemed to hang in mid-air, then righted, and shot forward smoothly. Uttering a hoa.r.s.e shout of joy, the boys leaped out, and were again running the car ahead, and a moment later gave vent to a second and louder cry.

In their faces blew the cooler air of a clearing.

A few yards farther they halted.

"I can't see a thing. Can't open them," declared Jack, as they stood rubbing their eyes, and recovering their breath.

"Neither can I. Give me your hand, and we'll soon fix it. There is a path here down to the water." Feeling with his foot, Alex found it, and pulling Jack after, hastened down, and in another moment both were on their stomachs on the river-bank, their faces deep in the cooling water.

Ten minutes later, greatly revived, but with faces and hands intensely smarting from their burns, the boys replenished the cans of water--for they still had a two miles' run through the smother of smoke--and lifted the car onto the main-line rails.

As they did so, from far to the west came a whistle.