Hurrying back to the navigating room, I posted myself beside the cumbersome, old-fashioned television instrument. L-472 was near enough now to occupy the entire field, with the range hand at maximum. One whole continent and parts of two others were visible. Not many details could be made out.
I waited grimly while an hour, two hours, went by. My field narrowed down to one continent, to a part of one continent. I glanced up at the surface temperature gauge and noted that the hand was registering a few degrees above normal. Correy, who had relieved Kincaide as navigating officer, followed my gaze.
"Shall we reduce speed, sir?" he asked crisply.
"To twice atmospheric speed," I nodded. "When we enter the envelope proper, reduce to normal atmospheric speed. Alter your course upon entering the atmosphere proper, and work back and forth along the emerging twilight zone, from the north polar cap to the southern cap, and so on."
"Yes, sir!" he replied, and repeated the orders to the control room forward.
I pressed the attention signal to Dival's cubicle, and informed him that we were entering the outer atmospheric fringe.
"Thank you, sir!" he said eagerly. "I shall be with you immediately."
In rapid succession I called various officers and gave terse orders. Double crews on duty in the generator compartment, the ray projectors, the atomic bomb magazines, and release tubes. Observers at all observation posts, operators at the two smaller television instruments to comb the terrain and report instantly any object of interest. With the three of us searching, it seemed incredible that anything could escape us. At atmospheric altitudes even the two smaller television instruments would be able to pick out a body the size of one of the missing ships.
Dival entered the room as I finished giving my orders.