As we were rushing toward the east, as fast as the sun was rushing away from us, the night came upon us swiftly. There came dusk and then the stars. We were at an altitude at which we would be sighted by almost no other craft, I knew, an altitude rarely used by any ships. Though the modern closed-construction and air and heat arrangements of air-craft made flying at that height practicable enough, it was necessary by reason of the greater tenuity of the air to use more of the motors' power to attain the same speed. As we hummed on at that great height, all sight of the ocean beneath was hidden from us by the great vapor-layer that lay over it beneath us and only the pale stars above and the triangle of gleaming cruisers behind were visible to us. Yet as we shot on, it was not these, our immediate surroundings, that held my thoughts, but the object of our flight. Gazing beside into the night, with Macklin silent at the wheel beside me and with all our long ships rushing close behind, I could not but be aware in those moments of the desperateness of this raiding attack upon which we were engaged. To flash across the sea with but little more than two hundred cruisers, to attempt a raid upon the European Federation's mighty capital even while a similar raid was made from westward upon the Asiatic Federation's capital, seemed indeed so desperate as to approach insanity. Berlin was guarded by a great chain of air-forts and patrols hanging over the eastern Atlantic; which held within itself, without doubt, all the great European battle-fleet of thousands of cruisers; which bore upon itself countless mighty batteries of giant heat-guns. Could we, in the face of these, reach Berlin, and send our heat-bombs crashing down upon its great arsenals? Above the Enemy These were the doubts that assailed me as our triangle of cruisers throbbed on and on through the upper night, but resolutely I thrust them away, remembering what our attack, what the crippling of our enemies' great and mysterious preparations, would mean to our American Federation. Then I turned as Macklin pointed silently to the glowing-figured dial of our distance-log, and saw by it that while I had brooded there at the window we had swept far out over the Atlantic at our tremendous speed. Within a short time, I knew, the European coasts would be beneath us, but during all the course of our flight so far we had sighted no other ships whatever, all merchant-traffic over the great ocean having been swept from the air by the first alarms of war, while we were still too far to the west to be meeting the far-flung patrols of the European Federation forces.