Chained to a tree near me, I saw another red man (it is strange that I should always think of myself as a red man here on Barsoom; and yet, perhaps, not so strange after all. Except for my color, I am a red man —a red man in thought and feeling to the marrow of my bones. I no longer ever think of myself as a Virginian, so ingrained has become my love for this world of my adoption.) "Well, where did you come from?" I demanded. "Are you one of the invisibles?"

"I am not," replied the man. "I have been here all along. When you were first brought I must have been asleep behind my tree, but the people stopping to comment on you awoke me. I heard you tell the girl that your name is Dotar Sojat. That is a strange name for a red man. Mine is Ptor Fak; I am from Zodanga."

Ptor Fak! I recalled him now; he was one of the three Ptor brothers who had befriended me that time that I had wished to enter Zodanga in search of Dejah Thoris. At first I hesitated to tell him who I really was; but then, knowing him to be an honorable man, I was about to when he suddenly exclaimed, "By the mother of the nearer moon! Those eyes, that skin!"

"S-h-h!" I cautioned. "I don't know the nature of these people yet, and so I thought it wiser to be Dotar Sojat."

"If you're not Dotar Sojat, who are you?" demanded a voice at my elbow. That's the trouble with this invisibility business—a man can sneak up on you and eavesdrop, and you haven't the slightest idea that there is anyone near you.

"I am the Sultan of Swat," I said, that being the first name that popped into my head.

"What's a sultan?" demanded the voice.

"A jeddak of jeddaks," I replied.

"In what country?"

"In Swat."

"I never heard of Swat," said the voice.

"Well, now that it's out, you had better tell your jeddak that he's got a sultan chained up here in his back yard."

The voice must have gone away, for I heard it no more. Ptor Fak was laughing. "I can see that things are going to brighten up a bit now that you are here," he said. "My deepest reverence for whichever one of your ancestors gave you a sense of humor. This is the first laugh I have had since they got me."

"How long have you been here?"

"Several months. I was trying out a new motor that we have developed in Zodanga and was trying to establish a record for a circumnavigation of Barsoom at the Equator, and of course this place had to be on the Equator and right under me when my motor quit. How did you get here?"