Quickly both boys faced about and beheld several canal officials on the bridges above the gates, which were slowly swinging shut. When at last they were closed, the men turned the freight-car-brake like wheels which regulate the sluices and dropped the bolts into place.

“Now turn around and look ahead again,” instructed the skipper.

On the bow lock another set of men were busy at the wheels, and as they raised the sluices, water began to bubble and foam at the bottom of the gates.

Soon the big carrier commenced to strain at her moorings, her hawsers creaking and groaning.

“Why, the boat is rising,” exclaimed Ted, excitedly.

The skipper was giving his attention to his boat again, and the boy’s comment was lost in the shouts of “Ease off a bit, bow! Ease off, stern!” that were yelled at the line-tenders on the carrier.

Greater and greater became the volume of water rushing into the lock as the gates were opened wider, and when they were full open, the Admiral rode ten feet higher.

“Cast loose,” commanded Captain Perkins. When the line-tenders ashore had received the word from the mates and obeyed, he pressed the button for going ahead and the huge boat crept into the second lock.

The action was repeated in this, and when the lock was filled, the Admiral was on the level of Lake Superior and steamed on her course, her line-tenders scrambling aboard as best they could, for it is the law of the lakes that they must look out for themselves and not depend on a skipper’s waiting for them.

Heaving lines and hawsers properly coiled and the log set, the crew settled down to their routine, thankful for the days ahead of them of straight sailing.