The hangar was located on the roof of a very old building that had evidently escaped the ravages of the Tharks. The landing space was small, and the hangars themselves dingy and unkempt.

As my craft settled to the roof, a fat man, well smeared with black grease, appeared from behind a flier upon the engine of which he was evidently working.

He looked at me questioningly, and I thought with none too friendly an expression. "What do you want?" he demanded.

"Is this a public hangar?"

"Yes."

"I want space for my craft."

"Have you got any money?" he demanded.

"I have a little. I will pay a month's rental in advance," I replied.

The frown melted from his face. "That hangar there is vacant," he said, pointing. "Run her in there."

Having housed my flier and locked the controls, I returned to the man and paid him.

"Is there a good public house near by?" I asked, "one that is cheap and not too dirty."

"There is one right in this building," he replied, "as good as any that you will find around here."

This suited me perfectly, as when one is on an adventure of this nature, one never knows how quickly a flier may be required or how soon it may be all that stands between one and death.

Leaving the surly hangar proprietor, I descended the ramp that opened onto the roof.

The elevators, ran only to the floor below the roof, and here I found one standing with its door open. The operator was a dissipated looking young fellow in shabby harness.

"Ground floor?" he asked.

"I am looking for lodgings," I replied. "I want to go to the office of the public house in this building."

He nodded, and the elevator started down. The building appeared even older and more dilapidated from the inside than the out, and the upper floors seemed practically untenanted.

"Here you are," he said presently, stopping the elevator and opening the door.

In Martian cities, public houses such as this are merely places to sleep. There are seldom but few, if any, private rooms. Along the side walls of long rooms are low platforms upon which each guest places his sleeping silks and furs in a numbered space allotted to him.

Owing to the prevalence of assassination, these rooms are patrolled night and day by armed guards furnished by the proprietor; and it is largely because of this fact that private rooms are not in demand. In houses that cater to women, these guests are segregated; and there are more private rooms and no guards in their quarters, as the men of Barsoom seldom, if ever, kill a woman, or I may qualify that by saying that they do not employ assassins to kill them, ordinarily.

The public house to which chance had led me catered only to men. There were no women in it.

The proprietor, a burly man whom I later learned was formerly a famous panthan, or soldier of fortune, assigned me a sleeping place and collected his fee for a day's lodging; and after directing me to an eating-place in response to my inquiries, left me.