The caravan was slow in getting away that morning. The good-natured bois brulés lingered to help the Brabant-Perier party across the Sheyenne. At some time hunters or traders had built a rude log bridge over the deep, muddy stream. Part of the old bridge had been carried away by flood waters, but skilled axmen soon repaired it, so that the two carts could be taken across.

By the time good-byes were said, last words of advice and warning spoken, the river crossed, and the steep bank climbed, the sun had passed its highest point. St. Antoine, Lajimonière, and several others rode with the little party through the thick woods that fringed the stream bank. The woods passed, St. Antoine carefully pointed out the route. The day was clear, and the travelers could see far across the flat, open country.

“You see that île des bois?” questioned St. Antoine, pointing to a tiny dark dot far away on the prairie. “That is the only île des bois for many miles around. Make straight for it. You can camp there to-night. There is a spring, and wood to boil your kettle. To-morrow go on in the same direction, and you will come to the river the Sioux call Pse, the white men Folle Avoine, from the wild rice that grows in its marshes. If you keep a straight course you will reach that river near a fording place. From there the Bois des Sioux is less than a day’s journey. But do not try to take your carts across either river until you are sure that the water is not too deep or the current too strong. The Bois des Sioux is a small stream and has many shallow places. Go then, and the good God go with you.”

The hunters turned back, waved a last farewell, and disappeared among the trees. Louis set his face towards the dark dot far across the prairie. “Marche donc!” he cried, and slapped his pony’s flank, he was riding ahead as guide, while Neil and Walter walked beside the carts.

The stretch of flat prairie between the Sheyenne and the Wild Rice looked easy to cross. The party expected to make good time, but the very flatness of the land proved a hindrance. The poorly drained plain was marshy. The grass grew tall and coarse, the soil it sprang from was spongy and frequently soft and wet. Stretches of standing water or very soft ground, grown thick with marsh grass and cattails, had to be skirted. In spite of the travelers’ care in picking their way, the cart wheels often sank far into the mud and water, and the faithful ponies had to pull hard to haul them through. In such places Mrs. Brabant and the children got out and walked or rode the two saddle ponies. Most of the time Louis or Neil rode ahead to select the route.

The difficult going lengthened the ten or twelve miles to that dark spot of woods. Sunset found the party still a mile or more from the île des bois. It would be better to go on, they decided, than to camp on the wet, open ground, with no wood for a fire, and only stagnant marsh water to drink.

Louis and Mr. Perier, with Max in front of him on the saddle, were riding in advance. Then came the carts with Mrs. Brabant and the girls, Neil beside the first cart, Raoul accompanying the second. Walter plodded along in the rear. Turning to look back at the sunset sky, where the reds and golds were already fading away, he noticed several dark forms loping along the trail through the tall grass. They were prairie wolves.

Walter had often seen wolves following the cart train, cleverly keeping just out of musket range, but ready to close in on the remains of any game that might be killed. He did not fear the cowardly scavengers. Yet now they gave him a strange feeling he had never had when with the long caravan. The sight of those wild creatures, shadowy in the twilight, following so boldly in the wake of the tiny party, brought to him a sudden sense of loneliness and peril such as he had not known before. He shivered, though the evening was warm. Then he raised his gun, intending to frighten the beasts, even if he could not hit them.

Before he had time to fire, an exclamation from Mrs. Brabant caused him to lower his gun and turn towards the cart. Both carts had stopped. A hundred feet ahead Louis and Mr. Perier had reined in. Louis jumped from his horse and stooped to examine the ground.

“What is it? Why are we stopping?” Walter asked Raoul.