"You fight in wars," said Murmillius, "you know nothing of."

"In what war do you fight?" I demanded.

"In my own," said Murmillius, meeting an attacker and insolently felling him.

Then to my surprise I saw, with us, fighting, a common Warrior, not a Taurentian, one whose helmet was no laced with gold nor his shield bound with silver, nor his shoulders covered with the purple of the Ubar's guard.

I did not question him, but accepted gratefully his presence at our side.

More Taurentians, perhaps two hundred more, leaped down from the wall.

I now saw fights in the audience in the tiers, some between Taurentians and citizens, others between citizens themselves. In some places armed Warriors, of common rank, stood against the purple-clad Taurentians.

Now those Taurentians left in the stands suddenly failed to restrain the crowds and thousands of citizens were leaping into the arena and others were swarming across the tiers toward the box of the Ubar. I saw Hup bounding and skipping on the tiers, crying out, and saw men throwing off cloaks, revealing blades, and rushing to meet Taurentians.

I saw Philemon, his face white, his eyes wide, turn and flee through the private passage that gives access to the box of the Ubar. He was followed by some seven or eight Taurentians.

"The people rise!" cried Ho-Sorl.

"Now," laughed Murmillius, looking to me, "I think you will find there are not too many."

I saw the Taurentians who had been facing us, perhaps three or four hundred, begin to disperse, fleeing toward the exits leading beneath the stands. The crowds, in their thousands, began to swarm over the walls, dropping to the sand screaming. Among them, shouting orders, were dozens of men, apparently of all castes, each with a scarf of silk, of imperial purple wrapped about his left arm.

Murmillius and I stepped back and, among the bodies, Relius, Ho-Sorl and Ho-Tu standing to one side, regarded one another.

He made no move.

I gave Ho-Tu the key to the helmet I wore, which Phais had thrust in my belt. Ho-Tu removed the helmet.

The air felt good. The crowd pressed about. I could make nothing of what they were saying.

"May I not now look upon the face of Murmillius?" asked I.

"It is not time," said Murmillius, regarding me.

"In this war of yours," said I, "what is the next step?"

"It is your step," said he, "Tarl Cabot, Warrior of Ko-ro-ba."

I looked at him.

He pointed to the top of the tiers. There I saw a man with a brown tarn, holding its reins.

"Surely," said he, "Gladius of Cos races this afternoon in the Stadium of Tarns?"

"You know of him?" I stammered.

"Hurry!" commanded Murmillius. "The Steels must have victory!"

"What of you?" I asked.

Murmillius spread his hand over the crowds on the sand and in the tiers.

"Through the streets," said he, "we march to the Stadium of Tarns."

I raced from the sand to the wall and, seizing a cloak lowered by one who wore the armband of imperial purple, scrambled upward. In an instant I was racing up the long tiers. When I reached the top there stood there a man with a purple scarf of silk, that armband indicating the imperial party. He held the reins of a common saddle tarn. I looked back down the long valley of stone tiers to the sands far below, seeing there in the circle of the arena, seeming small, Murmillius, Ho-Sorl, Relius, Ho-Tu, the milling, stirring crowd. Murmillius lifted his blade to me. It was the salute of a Warrior. A Warrior, I thought to myself, he is of the Warriors. I returned the salute.

"Hurry!" said the man who held the reins of the tarn.

I seized the reins of the tarn and leaped to the saddle. I hauled upon the one-strap and took the bird from the heights of the Stadium of Blades, streaking in a moment through the cylinders of Ar, leaving behind me men with whom I had fought, stained sand, and whatever we had together begun there.

I brought the tarn down behind the tiers in the Stadium of Tarns, in the Readying Compound of the Steels.

I heard the warning bar for a race about to begin.

As my bird, with a flash of wings, struck the sand of the compound, four men armed with crossbows rushed forward.

"Hold!" I cried. "I am of the Steels!"

Each of those who charged wore upon his shoulder the grayish patch that betokened the faction.

I found myself covered by their weapons.

"Who are you!" cried one.

"Gladius of Cos," I told them.

"It may be," said one, "for he is of the size and build."

The crossbows were not lowered.

"The tarn will know me," I said.

I leaped from the back of the tarn I rode and ran through the compound toward the perch of the black tarn.

Midway I stopped. Near one perch there lay a dead tarn, a small racing tarn, its throat cut. Near it, being tended for wounds, lay its intended rider, groaning. I knew the man. His name was Callius.

"What is this?" I cried.

"We enjoyed a visit by the Yellows," said one of the men grimly. "This tarn was slain and the rider direly wounded. We beat them off."

Another of the men gestured with his crossbow menacingly. "If you be not Gladius of Cos," said he, "you will die."

"Do not fear," I said and grimly strode toward the perch where I knew there would be the great black tarn, the majestic tarn of Ko-ro-ba, my Ubar of the Skies.

Approaching him we heard a wild tarn scream, of hate and challenge, and we stopped.

I beheld, in its compound, strewn about its perch, more than five men, or the remains of such.

"Yellows," said one of the men with the crossbow, "who tried to slay the bird."

"It is a War Tarn," said another.

I saw blood on the beak of the bird, its round black eyes, gleaming, wild.

"Beware," said one of the men, "even if you be Gladius of Cos, for the tarn has tasted blood."

I saw that even the steel-shod talons of the bird were bloodied.

Watching us warily it stood with one set of talons hooked over the body of a yellow. Then, not taking its eyes from us, it put down its beak and tore an arm from the thing beneath its talons.

"Do not approach," said one of the men.

I stood back. It is not wise to interfere with the feeding of a tarn.

I heard the judge's bar ringing three times signaling tarns to the starting perches. I heard the crowd roar.

"Which race is it?" I asked, suddenly afraid that I might be too late.

"The eighth," said one of the men, "that before the Ubar's Race."

"Callius was to have ridden this race," I said.

But Callius lay wounded. His tarn was dead.

"We stand one race behind at the beginning of the eighth," said one of the men.

My heart sank. With Callius wounded and tarns at, or near, their perches, the Steels would have no rider. My own tarn, if it could be readied at all, could not be brought to the starting perches before the ninth race, that of the Ubar. The Steels could not, thus, even did they win the Ubar's race, carry the day.

"The Steels are done," said I.

"But one rides for the Steels," said one of the crossbowmen.

I looked at him suddenly.

"Mip," said he.

"The little Tarn Keeper?" I asked skeptically.

"He," said the man.

"But what mount?" I queried.

"His own," said the man. "Green Ubar."

I was stunned. "The bird is old," I said. "It has not raced for years." I looked at them. "And Mip," I said, "though he knows much of racing is but a Tarn Keeper."

One of the men looked at me and smiled.

Another lifted his crossbow, leveling the weapon at my breast. "He is perhaps a spy of the Yellows," said he.

"Perhaps," agreed the leader of the crossbowmen.

"How do we know you be Gladius of Cos?" asked another.