In a very few minutes the boat was thus rolled up into a sort of a road, where the way was level. Here it went very easily. Presently it began to descend, and soon the boys saw that Forester was taking a sort of path which led by a gentle slope down to the water immediately below the mill. They were very much pleased at this, for, as they had had a great many excursions already on the mill-pond, they had become familiar with it in all its parts, and they were much animated at the idea of exploring new regions. In going down to the water on the lower side of the mill, they had, of course, no exertion to make to draw the boat, as its own weight was more than sufficient to carry it down upon the rollers. They only had to hold it back to prevent its running down too fast, and to keep it properly guided. "It goes down pretty easy," said Marco; "but I don't see how you are ever going to get it back again." It was, in fact, a long and rather steep descent. The boys thought that it would require far more strength than they could exercise, to bring the boat _up_ such an inclination. Forester told them not to fear. He said that a good commander never put too much upon his men, or voluntarily got them into any difficulty without planning beforehand a way to get out. They soon got down to the water's edge again. Here, instead of the broad and smooth pond which they had above the dam, they found a stream eddying, and foaming, and flowing rapidly down between rocks and logs. There was a bridge across the stream too, a short distance below. The boys were a little inclined to be afraid to embark, in what appeared to be a rather dangerous navigation, but they had confidence in Forester, and so they readily obeyed when Forester ordered the crew aboard. "Now, Mr. Bowman," said Forester, "keep a sharp lookout ahead for rocks and snags, and fend off well when there is any danger."