"Ah, I cannot tell; but, at any rate, he cannot have strengthened himself in her regard, for it is plain that she, at least, has no desire to see us come to harm. But he is a terrible enemy still, and we must continue to be on our guard against him."

"I should think that he would hardly dare to show himself now," I remarked.

"Don't be too sure of that. After all, we are interlopers here, and he has all the advantages of his race and his high rank. Ala is interested in us because she has, I believe I may say, a philosophical mind, with a great liking for scientific knowledge. It was she who planned and personally conducted the expedition toward the dark hemisphere. From me she has learned a little. She appreciates our knowledge and our powers, and would ask nothing better than to learn more about us and from us. Her prompt pursuit and interference to save us when she must have understood, perfectly, Ingra's design, shows that she will go far to protect us; but we must not presume too much on her ability to continue her protection, nor even on her unvarying disposition to do so. For the present, however, I think that we are safe, and I repeat that our position has been strengthened. Ingra made a great mistake. He should have finished us out of hand."

"His leaving us to be devoured by those fearful creatures showed an inexplicable cruelty on his part; he chose the most horrible death he could think of for us," I said.

"Oh, I don't know," replied Edmund. "Did you ever see a laughing boy throw flies into a spider's den? It is my idea that he simply wished to have us disappear mysteriously, and then he would never have offered an explanation, unless it might have been the malicious suggestion that we had suddenly decamped to return to the world we pretended to have come from. And but for Ala's unexpected return to the mine he would have succeeded. No doubt his crew were pledged to secrecy."

CHAPTER XVII

EARTH MAGIC ON VENUS

We were no sooner installed again at the capital than Edmund began his "readjustment of the atomic energies."

"Blessed if I know what he means," said Jack; "but he gets the goods, and that's enough for me."

In reality I did not understand it any better than Jack did, only I had more knowledge than he of the nature of the forces that Edmund employed. We went with him to the place in the great tower where the car had been stored, and where it seemed to be regarded with a good deal of superstitious awe. But they had not yet the least idea of its marvelous powers. We were preparing for them the greatest surprise of their lives, and our impatience to see the effect that would be produced when we made our first flight grew by day, while Edmund, shut up alone in the car, labored away at his task.