“Half a dozen cars have gone up, and haven’t come back,” a voice answered.

“Maybe they can’t get back,” the doctor laughed.

“Maybe,” said the other man. “But I reckon they got through. Better put on your chains, though.”

After the chains were put on both cars, they started out once more, on the last pull to the lake.

“Only three or four miles now,” said Uncle Billy, “and a thousand feet to climb.”

The road was muddy, but well graded, as it wound up the ravine, through heavy timber, with great drifts of snow on either side. Before long they came to places where the drifts had been shoveled out to let the road through, and in these places the road was so soft that everybody but the drivers got out and walked. The boys made snowballs and pelted each other. Once or twice the cars stuck, and they had to get boughs to put under the wheels. But there was no serious delay till they were almost at the top of the climb. Here they found several cars stalled ahead of them. Going forward, they found that one big drift was still in the way. Part of it was cut through, but the last end was still ten feet of solid snow. The rangers were even now laying a train of TNT through it, and connecting the fuses. The boys rushed back for their cameras.

When the dozen charges were ready, everybody ran out of the way. A ranger connected the wires, and went back behind a tree to the battery. A moment later there was a terrific explosion, and a huge geyser of black smoke and black water rose from the drift, the blackened water settling down in a fine, dirty mist on the snow to leeward.

“Gosh, I hope I snapped that at the right time!” said Bennie. “Made me jump so, I couldn’t tell.”

Mr. Stone, who was working with a graflex, said he thought he got a good one, anyway. Then they went forward and found the twelve charges had blasted out a deep ditch in the snow right through the drift. Men sprang in with shovels, and in fifteen minutes the cars could plough through. From there on the snow was melted from the road, and flowers were already coming up through the soft brown pumice soil.

Right ahead of them the boys saw the hotel, and in front of the hotel the land seemed to disappear. It didn’t look at all like a mountain here. The road was now quite level, and there were woods all about. Only to the right there was a mountain peak, close by, covered with a great cap of snow. It looked more as if they were coming to the edge of some cañon.