“It will sink only if it leaks badly,” explained Leblance. “The sustaining compartments are always closed. Even if several compartments should burst, the loss of the lift is compensated by the aeroplane action of the hull whenever driven at full speed. When thus driven it burns its own fuel so rapidly that this, acting the same as the casting of ballast, is continuously lightening the ship. This is what is called balancing the ship. The air balloonets maintain the rigidity of the bag whenever it loses gas through the action of the sun or change in elevation. The breeze passing through the ventilators at the bow prevents the gas from expanding on the hottest days of the year. I tell you confidently, my young friends, to my mind the Albatross is practically unsinkable.”

Neither Dave nor Hiram had thus far been inside the cabin and other living apartments of the Albatross. They had, however, watched their construction. The big airship could carry twenty passengers, if necessary, and in providing for the comfort of those making the first trip no detail for their welfare had been overlooked. There were washrooms, provision apartments, a cook’s galley; and the engineer’s quarters, Leblance explained, would be perfect in appointment and equipment. The main point he had striven for was to maintain absolute control of the gas at all times. As this depended upon reliable engines, motors had been built that ran for thirty-six hours at full speed. The machinery could not break down, as every part had been duplicated.

“That means,” said Leblance, “that if the carburetor gets out of order, a duplicate enables it to go right on working. The engine has a great number of automatic devices, among them two pumps which force the fuel to exactly the right places, even if the ship is standing on its beam ends, running up into the air or coming down at an angle of forty-five degrees. You won’t have to sit sandwiched in small quarters, my young friends. You can walk up and down the cabin and go all over the ship, without disturbing the balance of the huge float overhead. To-morrow the last touch will be put on the engine, and then practically we will be all ready.”

Hiram went down to the post-office for the mail after supper that day. Mr. King and his party were downstairs in the living room of the boarding house, entertaining two airmen who had come to Croydon to look over the Albatross that afternoon, when Hiram returned.

The young aviator’s impetuous assistant burst unceremoniously in upon the group, stumbled over a rug and went flat, but flushed and breathless tossed the evening newspaper to Mr. King.

“Read, read!” panted the excited lad.

“Why, what’s all this commotion, Hiram?” questioned the astonished veteran airman.

“It’s all in—the paper,” gasped Hiram in jerks. “The Dictator—has—got—ahead of us.”

“What’s that!” fairly shouted Mr. Dale, springing to his feet.

“Yes,” declared Hiram. “The Dictator started from Senca this afternoon—on her trip across the Atlantic!”