Alf turned questioningly to the Scotsman.

"Get to work and break off as many branches as you can," was the reply to the look. "Haggis, you've got your tomahawk? Well, cut down a lot o' these straight poplars. I'll give a hand to the laddie."

It was not long before the sharp axe had laid prone a number of young poplars and partly lopped them, while Mackintosh and Alf had torn down a number of maple and other leafy branches that would lie fairly flat. These were gathered to the edge of the muskeg.

"You're no' feared to take a bit o' risk for your friend's sake?" the man then asked, turning a look of confidence to the boy.

"Afraid?" echoed Alf contemptuously. "Tell me what to do, and—well, I'd give my life for Bob!"

"That's as it should be," returned Mackintosh approvingly. "'Greater love hath no man than this, that a man lay down his life for his friend.' I would offer to do this myself, only I'm a great heavy gowk, and Haggis is no' much better. But you're light as a feather compared with us. Now we'll put two o' these poles like the sides o' a ladder; then some o' the branches cross-ways. And you'll go out and build farther as we hand them to you. Can you do this?"

"Of course," replied Alf firmly.

"And don't hurry. Work sure and steady. The turf will stand the weight with only you on it. And when you reach Bob, you'll spread the branches all round. The rest I leave to you."

To Alf it seemed hours before even the first section of the ladder was completed, but he did his best to control his impatience, knowing well the value of Mackintosh's advice; and at last came the moment of joy when he was ready for the second poles to project from the ends of the first ones, and a fresh supply of branches. But it was a tedious undertaking at the best, made doubly so by anxiety to reach the end; for each time the supply of building material was exhausted he had to creep back for more, as the men dared not trust their weight far from the edge of the muskeg.

All this time Bob was watching the work as a starving man feasts his eyes upon the nearness of food and drink.