The sun had already risen when the outlines of the distant island became visible in detail and Billy, after a long and careful scrutiny through the glasses, declared he could see something that might or might not be the Golden Eagle II perched on its summit. This was cheering news and put new strength into the paddlers’ flagging arms. From that time on till they reached the island and found that all was well the boys did not speak a word, but put all their strength into the work of urging the boats through the water. It was aggravating work too, for at times they would be only half a mile from the island and then they would find that they were compelled to follow another watery path that took them a couple of miles away from their destination. At last, however, the keels of the little flotilla grated on the island and Billy and Lathrop ran up the well-worn trail leading to the summit.

Their joy at finding the air-ship intact may be imagined. It was better luck than they had dared to hope for. Speed was the main thing now and while they might have reached the island of the formula stealers by boat the journey there and back to the coast again by water would have been a tedious one and might indeed, by its very length, have defeated their purpose.

Lathrop’s first care was to examine the gasolene supply. He found to his satisfaction that the tank was more than half full and he immediately dumped into it the contents of the two five-gallon cans of reserve supply that the boys had brought along and which were stored under the transom.

For an hour or more the boy went over the machine carefully, striving to master to the minutest detail its working parts. Lathrop was an aviator and next to the boys, perhaps was as skilled a navigator of aerial craft as the old school in New York had turned out, but he was a little dubious about his ability to run the Golden Eagle II. However, it had to be done and after giving Billy careful instructions about keeping the oil cups filled and seeing to it that the condenser was in constant working order, Lathrop decided that things were about ready for his experimental flight in the Chester boys’ big aeroplane.

“And to think that in White Plains I’d have given my head to see it and here I am going to run her,” he could not help saying to himself as he stepped back and gave a final look over the craft.

Under Lathrop’s direction the aeroplane was wheeled back to the furthest boundary of the top of the mound as he did not want to take chances on not securing a good running start. Lathrop knew that aeroplanes are like horses, they will go well for the man who is used to them under almost any condition; but when a new hand takes control accidents are likely to happen unless the greatest care is used. As he well realized he knew nothing of the habits of the Golden Eagle II, which was a far bigger aeroplane than he had ever run or in fact ever seen.

The boy’s heart beat a little faster as he clambered into the pilot section of the chassis and adjured Billy for the last time to look well to the engine.

“That’s all right,” Billy anxiously assured him, “I’m as good an engineer as Harry himself, or will be,” he added.

“Don’t holler till you’re out of the wood,” said Lathrop, “and obey orders.”

It is curious how circumstances will alter cases. Billy Barnes, by virtue of his greater age and knowledge of the world was easily Lathrop’s leader, ordinarily. Now, however, when Billy was about to enter upon a duty of which he knew nothing and the other boy a whole lot, their positions were readjusted and it was Lathrop who became the leading spirit.