The building must have covered several acres; so there were an enormous number of planes hangared there. I could see them now, as I had seen them years before, swarming like angry mosquitoes over the Golden Cliffs of the Holy Therns; but what were they doing here? I had supposed that the First Born lived only in the Valley Dor, although the majority of Barsoomians still believe that they come from Thuria, the nearer moon. That theory I had seen refuted the time that Xodar, a Black Pirate, had nearly succumbed from lack of oxygen when I had flown too high while escaping from them, that time that Thuvia and I had escaped the Therns, during their battle with the Black Pirates. If a man can't live without oxygen, he can't fly back and forth between Thuria and Barsoom in an open flier.

The officer had sent a warrior along, with me, as a precaution against sabotage, I suppose; and I asked this fellow why I had seen no ships in the air since I had come, except the few I had seen this day.

"We fly mostly at night," he replied, "so that our enemies cannot see where we take off from, nor where we land. Those that you saw coming in a few minutes ago were visitors from Dor. That may mean that we are going to war, and I hope so. We haven't raided any cities for a long time. If it's to be a big raid, those from Dor and from Kamtol band together."

Some Black Pirates from the Valley Dor! Now, indeed, I might be recognized.

Chapter 11

As I walked away from the hangar building, I turned and looked back, studying every detail of the architecture; then I walked around the entire building, which covered a whole square, with avenues on all four sides. Like nearly all Martian buildings, this one was highly ornamented with deep carvings. It stood in a rather poor section of the city, although not far from the palace; and was surrounded by small and modest homes. They were probably the homes of the artisans employed around the hangar. A little farther from the hangar a section of small shops began; and as I passed along, looking at the wares displayed, I saw something which brought me to a sudden stop, for it suggested a new accessory to my rapidly formulating plans for escape from the Valley of the First Born—from which none ever escaped. It is sometimes well not to be too greatly constrained by precedent.

I entered the shop and asked the proprietor the price of the article I wished.

It was only three teepi, the equivalent of about thirty cents in United States money; but with the information came the realization that I had none of the money of the First Born.