“Isn’t it? But it’s go-o-one——”

“There, there! We’ll find it and the children will be all right,” he assured her.

Ruth came running with the key to the padlock that moored the Nimble Shanks to the mooring stake. They got out to her—just the two girls and Neale—in a dory.

The Nimble Shanks was a blue boat with a high prow and long, sweeping lines to the low stern. It was not a large boat, but was built for speed. The engine and steering-gear were amidships and were arranged so that one man could handle the craft.

Neale was naturally of a mechanical turn, as well as an athlete. He had built a kerosene engine during the winter, with some assistance from Mr. Con Murphy, the shoemaker with whom he lived in Milton. Moreover, he had driven a boat just like this one of Mr. Stryver’s on the Milton river.

While Ruth was unlocking the chain of the Nimble Shanks, and fastening the dory in its place, Neale whirled the fly-wheel and caught the ignition spark; immediately the exhaust began to pop and Neale shouted:

“All free, there, Ruth?”

“Let her go, Neale!” returned Agnes, eagerly. “I can’t wait, it seems to me.”

“Sit tight, then, ladies,” said Neale, as Ruth scrambled aft. “I believe this craft can be made to travel.”

The girls obeyed as the Nimble Shanks started. She shot right out into the middle of the river, and the wave thrown up by her wedge-like bow rose higher and higher on either hand. Actually, when the motorboat had been running for five minutes, the girls in the sternsheets seemed sitting at a much lower level than the surface of the river.