"You'll do," said Dr. Yool. "They'll keep you busy. Don't forget I want your help with these stinks"--pointing with his whip to the heaps of refuse lying about.

"I'm tackling stinks now. Tiger-pups in the morning, stinks in the afternoon, Dr. Yool in the evening. That's the order of service at present." And they parted the better for the meeting.

Eager had a chat with some of the wise men of Wynsloe, and got points from them as to shifting sands, and the tucking sands, and the other dangers of that treacherous coast, and in return incidentally dropped into their minds some seeds of wisdom respecting stinks and their consequences.

Five minutes to eight next morning found him a-perch of the highest sand-hill in the neighbourhood, on the look-out for his pupils.

Five minutes past eight found him somewhat disappointed at their non-appearance. They had seemed eager enough too, the day before. Perhaps the old man had thought better of it. Then he remembered his cynical hope that the swimming might prove of service in the solution of his great problem. And then a couple of war-whoops at each of his ears jerked him off his perch with so sudden a leap that the whoopers squirmed in the sand with delight.

"Thought we weren't coming?" grinned Jack.

"Well, I began to fear you'd been stopped----"

"We promised," grinned Jim; and Eager rejoiced to think that that seed at all events had taken root.

In two minutes they were trotting across the flats, and presently they were in the tide-way, and the little savages were revelling in a fresh acquirement and a new sense of motion.

There was little teaching needed. Eager took them out, one after the other, neck-deep, and turned their faces to the shore, and they swam home like rats, and yelled hilariously from pure enjoyment as soon as they found their breath.