"But no known type of vessel could have made away with them without detection," the second officer argued. "I wonder if there isn't something in those wild rumors we've been hearing lately?"
"Bah! Of course not!" snorted the captain. "Pirates in ships faster than light—sub-ethereal rays—nullification of gravity mass without inertia—ridiculous! Proved impossible, over and over again. No, sir, if pirates are operating in space—and it looks very much like it—they won't get far against a good big battery full of kilowatt-hours behind three courses of heavy screen, and good gunners behind multiplex projectors. They're good enough for anybody. Pirates, Neptunians, angels, or devils—in ships or on broomsticks—if they tackle the Hyperion we'll burn them out of the ether!"
Leaving the captain's desk, the watch officer resumed his tour of duty. The six great lookout plates into which the alert observers peered were blank, their far-flung ultra-sensitive detector screens encountering no obstacle—the ether was empty for thousands upon thousands of kilometers. The signal lamps upon the pilot's panel were dark, its warning bells were silent. A brilliant point of white light in the center of the pilot's closely ruled micrometer grating, exactly upon the cross-hairs of his directors, showed that the immense vessel was precisely upon the calculated course, as laid down by the automatic integrating course plotters. Everything was quiet and in order.
"All's well, sir," he reported briefly to Captain Bradley—but all was not well.
Danger—more serious by far in that it was not external—was even then, all unsuspected, gnawing at the great ship's vitals. In a locked and shielded compartment, deep down in the interior of the liner, was the great air purifier. Now a man leaned against the primary duct—the aorta through which flowed the stream of pure air supplying the entire vessel. This man, grotesque in full panoply of space armor, leaned against the duct, and as he leaned a drill bit deeper and deeper into the steel wall of the pipe. Soon it broke through, and the slight rush of air was stopped by the insertion of a tightly fitting rubber tube. The tube terminated in a heavy rubber balloon, which surrounded a frail glass bulb. The man stood tense, one hand holding before his silica-and-steel-helmeted head a large pocket chronometer, the other lightly grasping the balloon. A sneering grin was upon his face as he waited the exact second of action—the carefully predetermined instant when his right hand, closing, would shatter the fragile flask and force its contents into the primary air stream of the Hyperion!
Far above, in the main saloon, the regular evening dance was in full swing. The ship's orchestra crashed into silence, there was a patter of applause, and Clio Marsden, radiant belle of the voyage, led her partner out onto the promenade and up to one of the observation plates.
"Oh, we can't see the Earth any more!" she exclaimed. "Which way do you turn this, Mr. Costigan?"
"Like this," and Conway Costigan, burly young First Officer of the liner, turned the dials. "There—this plate is looking back, or down, at Tellus; this other one is looking ahead."
Earth was a brilliantly shining crescent far beneath the flying vessel. Above her, ruddy Mars and silvery Jupiter blazed in splendor ineffable against a background of utterly indescribable blackness—a background thickly besprinkled with dimensionless points of dazzling brilliance which were the stars.