Returning to the caravansary, he found Traz and Anacho arguing as to the nature of the Phung. Traz declared them to be creatures generated by Pnumekin upon the corpses of Pnume. "Have you ever seen a pair of Phung? Or an infant Phung? No.

They go singly. They are too mad, too desperate, to breed."

Anacho waved his fingers indulgently. "Pnume go singly as well, and reproduce in a peculiar manner. Peculiar to men and sub-men, I should say, for the system seems to suit the Pnume admirably. They are a persistent race. Do you know that they have records across a million years?"

"So I have heard," said Traz sourly.

"Before the Chasch came," said Anacho, "the Pnume ruled everywhere. They lived in villages of little domes, but all trace of these are gone. Now they keep to caves and passages under the old cities, and their lives are a mystery. Even the Dirdir consider it bad luck to molest a Pnume."

"The Chasch then came to Tschai before the Dirdir?" Reith inquired.

"This is well-known," said Anacho. "Only a man from an isolated province-or a far world-could be ignorant to the fact." He gave Reith a quizzical glance. "But the first invaders indeed were the Old Chasch, a hundred thousand years ago. Ten thousand years later the Blue Chasch arrived, from a planet colonized an era previously by Chasch spacefarers. The two Chasch races fought for Tschai, and brought in Green Chasch for shock-troops.

"Sixty thousand years ago the Dirdir arrived. The Chasch suffered great losses until the Dirdir arrived in large numbers and so became vulnerable, whereupon a stalemate went into effect. The races are still enemies, with little traffic between them.

"Comparatively recently, ten thousand years ago, space-war broke out between the Dirdir and the Wankh, and extended to Tschai when the Wankh built forts on Rakh and South Kachan. But now there is little fighting, other than skirmishes and ambushes. Each race fears the other two and bides its time until it can expunge all but itself. The Pnume are neutral and take no part in the wars, though they watch with interest and take notes for their history."

"What of men?" asked Reith guardedly. "When did they arrive on Tschai?"

Anacho's side-glance was sardonic. "Since you claim to know the world where men originated, this information should be in your possession."

Reith refused to be provoked and made no comment.

"Men originated," said the Dirdirman in his most didactic manner, "on Sibol and came to Tschai with the Dirdir. Men are as plastic as wax, and some metamorphosed, first into marsh-men, then, twenty thousand years ago, into this sort." He pointed toward Traz. "Others, enslaved, became Chaschmen, Pnumekin, even Wankhmen. There are dozens of hybrids and freakish races. Variety exists even among the Dirdirmen. The Immaculates are almost pure Dirdir. Others exhibit less refinement. This is the background for my own disaffection: I demanded prerogatives which were denied me, but which I adopted in any event..."

Anacho spoke on, describing his difficulties, but Reith's attention wandered. It was clear, to Reith at least, how men had come to Tschai. The Dirdir had known space-travel for more than seventy thousand years. During this time they evidently had visited Earth, twice at the very least. On the first occasion they had captured a tribe of photo-Mongoloids; on the second occasion, twenty thousand years ago, according to Anacho-they had collected a cargo of proto-Caucasoids. These two groups, under the special conditions of Tschai, had mutated, specialized, remutated, respecialized to produce the bewildering diversity of human types to be found on the planet.

So then: the Dirdir undoubtedly knew of Earth and its human population, but perhaps reckoned it still a savage planet. Nothing could be gained by advertising the fact that Earth was now a spacefaring world; indeed Reith could envision calamity arising from the knowledge. There were no clues aboard the space-boat to point to Earth, except possibly the corpse of Paul Waunder. In any event the Dirdir had lost possession of the space-boat to the Blue Chasch.

Still unanswered was the question: who had fired the torpedo that destroyed the Explorator IV?

Two hours before sundown the Green Chasch broke camp. The high-wheeled wagons milled in a circle; the warriors mounted on monstrous leap-horses, lunged and bounded; then at some imperceptible signal-perhaps telepathic, reflected Reith-the band formed a long line and moved off toward the east. The Ilanth scouts set forth and followed at a discreet distance. In the morning they returned to report that the band seemed to be veering to the north.

Late in the afternoon the Aig-Hedajha caravan arrived, laden with leather, aromatic logs and mosses, tubs of pickles and condiments.

Baojian the caravan-master took his wagons and drays out upon the steppe, to effect exchanges and transshipments. Derricks rolled between the two caravans, swinging goods back and forth; porters and drivers toiled and strained, sweat rolling down their naked backs and into their loose brown breeches.

An hour before sunset the transfer of goods had been effected and a call came into the common-room for all passengers. Reith, Traz, Anacho and the Flower of Cath started across the compound. The priestesses were nowhere to be seen; Reith assumed that they were aboard their house.

They walked out under the rock juts toward the caravan. There was a sudden jostle; arms gripped Reith in a bear-hug and he was pressed against a soft wheezing body. He struggled; the two toppled to the ground. The Grand Mother gripped him in her massive legs. Another priestess seized the Flower of Cath and dragged her at an awkward lope out to the caravan. Reith lay enfolded in masses of flesh and muscle. A hand squeezed his throat; blood surged through his arteries and his eyes began to start. He managed to free an arm, drove stiff fingers up into the Grand Mother's face, into something moist. She gasped and wheezed; Reith found her nostrils, clenched, twisted; she cried out and kicked; Reith rolled free.

An Ilanth was rummaging through his pack; Traz lay limp on the ground; Anacho was coolly defending himself against the swordplay of the remaining two Ilanths.

The Grand Mother grabbed for Reith's legs; Reith kicked furiously, won free, lurched aside as the Ilanth investigating his pack looked up and flicked a knife at him. Reith struck up at the lemon-yellow chin with his fist; the man went down. Reith leapt on the back of one of the Ilanths who were attacking the Dirdirman, bore him down, and Anacho deftly stabbed him. Reith side-stepped a thrust from the third Ilanth, seized the outstretched arm, threw the man cartwheeling over his shoulder. The Dirdirman, standing by, struck down with his sword, nearly cutting through the yellow neck. The remaining Ilanth took to his heels.

Traz, tottering to his feet, stood holding his head. The Grand Mother was at this moment mounting the steps into the drayhouse.

Reith in all his existence had never been so angry. He picked up his pack, marched to where Baojian the caravan-master stood directing the passengers to their compartments.

"I was attacked!" stormed Reith. "You must have noticed! The priestesses have dragged the Cath girl into their house and hold her prisoner!"

"Yes," said Baojian. "I saw something of the sort."

"Well, then, assert your authority! Enforce your ban on violence!"

Baojian gave his head a prim shake. "The affair occurred on that strip of the steppe between the compound and the caravan, where I make no effort to maintain order. It appears that the priestesses have recovered their property in the same manner by which they lost it. You have no cause for complaint."

"What?" roared Reith. "You'll let them inflict an innocent person with their Female Mystery?"