“By Jove! They have picked the trail,” declared Jack.

“So they have,” said Boris. “Do you know, I am beginning to have hopes that we shall reach the railroad.”

“Of course we shall,” said Jack confidently. “It may be hard work, but we shall reach there.”

“And then?” demanded Boris.

Again Jack shrugged his shoulders.

“Who knows?” he muttered and gave his undivided attention to the road that stretched out ahead.

All day they drove slowly along, for they did not wish to tire the horses more than was necessary. It was bitterly cold, but the two travelers had been fortunate enough to find heavy rugs in the sleigh, and these kept them quite comfortable. Also Jack had come upon one pair of gloves. These had to do for both, so the one kept his ungloved hands beneath the robes while the other did the driving.

It grew dusk.

Jack, glancing back down the road, saw a moving object coming after them. It looked like a dog and the lad called Boris’ attention to the form loping along behind them, apparently content to remain at the same relative distance.

Boris took one look at the following form and cried out: