"I will explain to you my notion," said Professor Moissan, the great French chemist. "I think it was a pill of the air, which he has taken."

"What do you mean by that?"

"My meaning is," said Professor Moissan, "that the Martian must have, for that he may live, the nitrogen and the oxygen. These can he not obtain here, where there is not the atmosphere. Therefore must he get them in some other manner. This has he managed to do by combining in these pills the oxygen and the nitrogen in the proportions which make atmospheric air. Doubtless upon Mars there are the very great chemists. They have discovered how this may be done. When the Martian has swallowed his little pill, the oxygen and the nitrogen are rendered to his blood as if he had breathed them, and so he can live with that air which has been distributed to him with the aid of his stomach in place of his lungs."

If Monsieur Moissan's explanation was not correct, at any rate it seemed the only one which would fit the facts before us. Certainly the Martian could not breathe where there was practically no air, yet just as certainly after he had swallowed his pill he seemed as comfortable as any of us.

Suddenly, while we were gathered around the prisoner, and interested in this fresh evidence of the wonderful ingenuity of the Martians, and of their control over the processes of nature, one of the electrical ships that had been sent off in the direction of Mars was seen rapidly returning and displaying signals.

It reported that the Martians were coming!


CHAPTER EIGHT

"THE MARTIANS ARE COMING!"

The alarm was spread instantly among those upon the planet and through the remainder of the fleet.