Now I commenced to understand what I had suspected but could not believe. It was absolutely astounding. I was looking at and conversing with men who had lived hundreds of thousands of years ago, when Throxeus and the other four oceans of ancient Mars had covered what are now the vast desert wastes of dead sea bottom; when a great merchant marine carried on the commerce of the fair-skinned, blond race that had supposedly been extinct for countless ages.

I stepped closer to Kam Han Tor and laid a hand upon his shoulder. The men and women who had been released from Lum Tar O's malicious spell had gathered around us, listening. "I am sorry to disillusion you, Kam Han Tor," I said; "but you will build no ship, nor will any ship ever again sail Throxeus."

"What do you mean. he demanded. "Who is to stop Kam Han Tor, brother of the jeddak, from building ships and sailing them upon Throxeus?"

"There is no Throxeus, my friend," I said.

"No Throxeus? You are mad!"

"You have been here in the pits of Horz for countless ages," I explained, "and during that time the five great oceans of Barsoom have dried up. There are no oceans. There is no commerce. The race to which you belonged is extinct."

"Man, you are mad!" he cried.

"Do you know how to get out of these pits?" I asked—"out into the city proper—not up through the-" I was going to say citadel but I recalled that there had been no citadel when these people had been lured to the pits.

"You mean not up through my palace?" asked Kam Han Tor.

"Yes," I said, "not up through your palace, but out toward the quays; then I can show you that there is no longer a Throxeus."

"Certainly I know the way," he said. "Were these pits not built according to my plans!"

"Come, then," I said.

A man was standing looking down on the head of Lum Tar O. "If what this man says is true," he said to Kam Han Tor, "Lum Tar O must have lived many ages ago. How then could he have survived all these ages? How have we survived?"

"You were existing in a state of suspended animation," I said; "but as for Lum Tar O—that is a mystery."