"You like it, don't you?" demanded Billy, almost fiercely.

"You bet cher life, I do," was Bill's truthful, if vulgarly expressed, rejoinder.

On and on skimmed the Golden Eagle, seemingly as much at home on the surface of the gently heaving South Atlantic as in the upper air currents. So exhilarating was the sensation, that Frank kept the winged craft straight on, holding her to her course with the air rudder, which worked as well on the water as in the clouds.

Then swinging in a long circle, so that the strain on the long pontoons and their bracings would not be too great, he brought the ship about and headed her back for the Bolo, that lay, a tiny speck, on the far horizon, so far and fast had they traveled.

They came back at the same swift gait as they had taken the outward spin, and all voted this new form of water riding as enjoyable as anything they had ever experienced.

That night was spent in making final arrangements for the dash in search of the golden galleon. As the adventurers did not want to carry more weight than could be avoided, it was agreed that Bluewater Bill, Lathrop and Billy Barnes should remain on board the Bolo, while the Boy Aviators and Ben Stubbs started on the aerial search for the treasure ship.

From the latitude and longitude in which they were then anchored, Bluewater Bill judged that the galleon could not lie much more than two hundred miles to the southeast, out across the wilderness of Sargasso. Of course she might have shifted, but from an aeroplane it is possible to survey a tremendous area, and the young adventurers were confident of being able to pick up the prize.

Two more bitterly disappointed youths than Billy and Lathrop could hardly be imagined than they were when they learned that it would be impossible to take them on the scouting expedition. Frank, however, pointed out the utter foolishness of overloading the Golden Eagle—more especially as they might have to bring back a heavy load. Being sensible boys, both Billy and Lathrop, therefore, soon got over their gloom.

Early the next morning, the final provisions were loaded into the aeroplane's chassis and her barometer, auto-clock and other instruments were adjusted by the Bolo's own and set in place. A careful note was then made of the Bolo's position and noted in Frank's pocket log-book. This done there only remained farewells to be said and these were necessarily brief.

It was ten-thirty o'clock on a cloudless, breathless morning that the Golden Eagle, with her pontoons empty, except for a supply of drinking water carried in the small reserve tanks at either end, shot into the air from the glassy sea.