Strong cut him off. "Corbett, you are in complete command. Take over—you're losing time talking to me!"

"Yes, sir!" said Tom. He turned back to the control board, his face flushed with excitement. Twenty-four ships to maneuver and the responsibility all his own. Via a chart projected on a screen, he studied various approaches to the Moon and Luna City. What would he do if he were in command of the invading fleet? He noticed the Moon was nearing a point where it would be in eclipse on Luna City itself. He studied the chart further, made several notations and turned to the teleceiver.

"Attention—attention—flagship Polaris to Squadrons B and C—proceed to chart seven—sectors eight and nine. You will patrol those sectors. Attention Squadrons D and F—proceed to Luna City at emergency space speed, hover at one hundred thousand feet above Luna City spaceport and wait for further orders. Attention, ships three and four of Squadron F—you will proceed to chart six—sectors sixty-eight through seventy-five.

"Attention Squadrons D and F—proceed to Luna City"

Cut all rockets and remain there until further orders. The remainder of Squadron F—ships one and two—will join Squadron A. Squadron A will stand by for further orders." Tom glanced at the clock and punched the intercom button.

"Have you got that course, Roger?"

"Three degrees on the starboard rockets, seventy-eight degrees on the up-plane of the ecliptic will put you at the corner of Luna Drive and Moonset Land in the heart of Luna City, spaceboy!" answered Roger.

"Get that, Astro?" asked Tom on the intercom.