Dalis re-entered the laboratory from the Wall Tube, near the Dome Exit, by which he had passed down to the lowest Inner Level, and stared suspiciously at the two Sarkas. He found them half-smiling their satisfaction.

"We pass the Moon within fifty thousand miles!" exulted Sarka. "A flight of two hours for the Gens which attacks the Moon! Do you refuse, O Dalis, to send your Gens against the Moon?"

"Why not send the Gens of Gerd!" demanded Dalis. "He is the youngest of the Spokesmen, and what better test is there for him than this?"

"It is because he is so young that we do not wish to send him," replied Sarka coldly. "The colonization of the Moon by Earthlings requires the guiding genius of a Spokesman who has the experience of a Dalis—or a Sarka, else you would now be dead!"

"Then let it be a Sarka!" barked Dalis.

"Who, then, will control the further flight of the Earth?"

"You! Let your father lead my Gens against the Moon!"

"What will your Gens say, O Dalis? That their revered Spokesman feared to lead them in person?"

"Enough of this squabbling," snapped Sarka the Second. "Do you not realize that within a matter of hours, some Gens must be sent into battle? Come with me to the Observatory, where you will be given something beside squabbling with which to occupy your minds!"