The plunging fall of the ship roused Chet from his stupor. He felt the jolt of the clumsy landing despite the snow-cushioned ground; he heard plainly the exclamations from beyond an open port—the startled oath in Walter Harkness' voice, and the stinging scorn in the words of Diane Delacouer.

Herr Schwartzmann had been in the employ of Mademoiselle Delacouer, but he was taking orders no longer. There was a sound of scuffling feet, and once the thud of a blow.... Then Chet watched with heavy, hopeless eyes as the familiar faces of Diane and Walt appeared in the doorway. Their hands were bound; they, too, were threatened with a slim-barreled pistol in the hands of the smirking, exultant Schwartzmann.

A tall, thin-faced man whom Chet had not seen before followed them into the room. The newcomer was motioned forward now, as Schwartzmann called an order to the pilot:

"All right; now we go. Max! Herr Doktor Kreiss will give you the bearings; he knows his way among the stars."

Herr Schwartzmann doubled over in laughing appreciation of his own success before he straightened up and regarded his captives with cold eyes.

"Such a pleasure!" he mocked; "such charming passengers to take with me on my first trip into space; this ship, it iss not so goot. I will build better ships later on; I will let you see them when I shall come to visit you."

He laughed again at sight of the wondering looks in the eyes of the three; stooping, he jerked the gag from Chet's mouth.

"You do not understand," he exclaimed. "I should haff explained. You see, meine guten Freunde, we go—ach!—you have guessed it already! We go to the Dark Moon. I am pleased to take you with me on the trip out; but coming back, I will have so much to bring—there will be no room for passengers.

"I could have killed you here," he said; and his mockery gave place for a moment to a savage tone, "but the patrol ships, they are everywhere. But I have influence here und there—I arranged that your flask of gas should be charged with explosive, I discredited you, and yet I could not so great a risk take as to kill you all.