* * * * * Forty-three hours and twenty minutes had passed since the receipt of the enemy's ultimatum. The last bolt was being tightened in the remodeled _Pioneer_, and Secretary Simler and his staff were on hand to witness the take-off of the vessel on which the hopes of the world were pinned. The news of our attempt had been spread by cable and printed news only, for there was fear that the enemy might be able to pick up the broadcasts of the news service and thus be able to anticipate us. As usual, there were many scoffers, but the consensus of opinion was in favor of the project. At any rate, what better expedient was there to offer? The huge airport, now unused on account of the complete cessation of air traffic, was closed to the public. But there was quite a crowd to witness the take-off, the visitors from Washington, the officials of the field, and the two hundred workers who had enabled us to make ready for the adventure in time. There were four to enter the _Pioneer_: Hart, George, Professor Lindquist, and myself. And when the entrance manhole was bolted home behind us, the watchers stood in silence, waiting for the roar of the _Pioneer's_ motor. As the starter took hold, Hart waved his hand at one of the ports and every man of those two hundred and some watchers stood at attention and saluted is if he were a born soldier and Hart a born commander-in-chief. * * * * * We taxied heavily across the field, for the _Pioneer_ was much overloaded for a quick take-off. She bumped and bounced for a quarter-mile before taking to the air and then climbed very slowly indeed, for several minutes. Our speed was a scant two hundred miles an hour when we swung out over New York and headed for the Atlantic. And then Hart made first use of the rocket tubes, not daring to discharge the hot gases below while over populated land at so low an altitude. He touched one button, maintaining the pressure for but a fraction of a second. The ocean slipped more rapidly away from beneath our feet and he touched the button once more. Our speed was now nearly seven hundred miles an hour and we made haste to buckle ourselves into the padded, hammocklike contrivances which had been substituted for the former seats. In a very few minutes we entered level six and the motor was cut off entirely.