"Yeah," said Astro. "How about that big one over there?" He pointed to the largest of the assembled crafts.

"O.K.," said Tom. "Sneak around this side and make a dash for it."

Gripping their rifles, they slipped around the stern of the small ship, and keeping a wary eye on the milling men around the front of the building, they dashed toward the bigger ship.

On the porch of the main house, Major Connel, every muscle in his body paralyzed, saw the three cadets dart across the field and his heart skipped a beat. Immediately before him, two of the green-clad men were holding Sinclair while Hilmarc addressed him arrogantly.

"This is just the beginning, Sinclair. Don't try to cross us again. Neither you nor anyone else can stop us!" He whirled around and faced Connel. "And as for you and your Solar Guard, Major Connel, you can tell them—"

Hilmarc's tirade was suddenly interrupted by a shrill whistle and the glare of a red flare overhead. There was a chorus of shouts as the men ducked for cover.

A voice, Connel recognized as Tom's, boomed out over the loud-speaker of the large jet ship near the edge of the clearing. "Now hear this! You are covered by an atomic mortar. Drop your guns and raise your hands!"

The men stared at the ship, confused, but Hilmarc issued a curt command. "Return to the ships!"

"But—but he'll blast us," whined one of the men. "He'll kill us all."

"You fool!" roared Hilmarc. "It must be a friend of Connel's or Sinclair's. He won't dare fire an atomic shell near this house, for fear of killing his friends! Now get aboard your ships and blast off!"