"Who were those men, Father?" Gaius asked, intrigued.

"Clients of mine. I have a few bound to me in the city," Julius replied, skinning his orange neatly.

"But what do they do? I have never seen them before."

Julius turned to his son, registering the interest. He smiled. "They are useful men. They vote for candidates I support, or guard me in dangerous areas. They carry messages for me, or… a thousand other small things. In return, they get six denarii a day, each man."

Marcus whistled. "That must add up to a fortune."

Julius transferred his attention to Marcus, who dropped his gaze and fiddled with the skin of his orange.

"Money well spent. In this city, it is good to have men I can call on quickly, for any sudden task. Rich members of the Senate may have hundreds of clients. It is part of our system."

"Can you trust these clients of yours?" Gaius broke in.

Julius grunted. "Not with anything worth more than six denarii a day."

Renius entered without announcement. One moment, the spectators were chatting amongst themselves with the dirty sand ring empty, and the next a small door opened and a man walked out of it. At first, he wasn't noticed, then people pointed and began to stand.

"Why are they cheering so loudly?" Marcus asked, squinting at the lone figure standing in the burning sun.

"Because he has come back one more time. Now you will be able to say you saw Renius fight when you have children of your own," Tubruk replied, smiling.

Everyone around them seemed lit up by the spectacle. A chant began and swelled: "Ren-i-us… Ren-i-us." The noise drowned out all the shuffling of feet and rustling clothing. The only sound in the world was his name.

He raised his sword in salute. Even from a distance, it was clear that age had not yet taken a good twisting grip on him.

"Looks good for sixty. Belly's not flat, though. Look at that wide belt," Tubruk muttered almost to himself. "You've let yourself go a little, you silly old fool."

As the old man received the plaudits of the crowd, a single file of fighting slaves entered the sandy ring. Each wore a cloth around his loins that allowed free movement and carried a short gladius. No shields or armor could be seen. The Roman crowd fell quiet as the men formed a diamond with Renius at the center. There was a moment of stillness and then the animal enclosure opened.

Even before the cage was dragged out onto the sand, the short, hacking roars could be heard. The crowd whispered in anticipation. There were three lions pacing the cage as it was dragged out by sweating slaves. Through the bars they were obscene shapes: huge humped shoulders, heads and jaws tapering back to hindquarters almost as an afterthought. They were created to crush out life with massive jaws. They swiped with their paws in unfocused rage as the cage was jarred and finally came to rest.

Slaves lifted hammers aloft to knock out the wooden pegs that held the front section of the cage. The crowd licked dry lips. The hammers fell, and the iron lattice dropped onto the sand, an echo clearly heard in the silence. One by one, the great cats moved out of the cage, revealing a speed and sureness of step that was frightening.

The largest roared defiance at the group of men that faced it across the sand. When they made no move, it began to pace up and down outside the cage, watching them all the while. Its companions roared and circled and it settled back onto its haunches.

Without a signal, without a warning, it ran at the men, who shrank back visibly. This was death coming for them.

Renius could be heard barking out commands. The front of the diamond, three brave men, met the charge, swords ready. At the last moment, the lion took off in a rushing leap and smashed two of the slaves from their feet, striking with a paw on each chest. Neither moved, as their chests were shards and daggers of bone. The third man swung and hit the heavy mane, doing little damage. The jaws closed on his arm in a snap like the strike of a snake. He screamed and carried on screaming as he staggered away, one hand holding the pumping red remains of the other wrist. A sword scraped along the lion's ribs and another cut a hamstring so that the rear quarters went suddenly limp. This served only to enrage the beast and it snapped at itself in red confusion. Renius growled a command and the others stepped back to allow him the kill.

As he landed the fatal blow, the other two lions attacked. One caught the head of the wounded man who had wandered away. A quick crack of the jaws and it was over. That lion settled down with the corpse, ignoring the other slaves as it bit into the soft abdomen and began to feed. It was quickly killed, speared on three blades in the mouth and chest.

Renius met the charge of the last to his left. His protecting slave was tumbled by the strike and over him came the snapping rage that was the male cat. Its paws were striking and great dark claws stood out like spear points, straining to pierce and tear. Renius balanced himself and struck into the chest. A wound opened with a rush of sticky dark blood, but the blade skittered off the breastbone and Renius was struck by a shoulder, only luck letting the jaws snap where he had been. He rolled and came up well, still with sword in hand. As the beast checked and turned back on him, he was ready and sent his blade into the armpit and the bursting heart. The strength went out of it in the instant, as if the steel had lanced a boil. It lay and bled into the sand, still aware and panting, but become pitiful. A soft moan came from deep within the bloody chest as Renius approached, drawing a dagger from his belt. Reddish saliva dribbled onto the sand as the torn lungs strained to fill with air.

Renius spoke softly to the beast, but the words could not be heard in the stands. He lay a hand on the mane and patted it absently, as he would a favorite hound. Then he slipped the blade into the throat and it was over.

The crowd seemed to draw breath for the first time in hours and then laughed at the release of tension. Four men were dead on the sand, but Renius, the old killer, still stood, looking exhausted. They began to chant his name, but he bowed quickly and left the ring, striding to the shadowed door and into darkness.

"Get in quickly, Tubruk. You know my highest price. A year, mind-a full year of service."

Tubruk disappeared into the crowds and the boys were left to make polite conversation with Julius. However, without Tubruk to act as a catalyst, the conversation died quickly. Julius loved his son, but had never enjoyed talking to the young. They prattled and knew nothing of decorum and self-restraint.

"He will be a hard teacher, if his reputation is accurate. He was once without equal in the empire, but Tubruk tells the stories better than I."

The boys nodded eagerly and determined to press Tubruk for the details as soon as they had the opportunity.

The seasons had turned toward autumn on the estate before the boys saw Renius again, dismounting from a gelding in the stone yard of the stables. It was a mark of his status that he could ride like an officer or a member of the Senate. Both of them were in the hay barn adjoining, and had been jumping off the high bales onto the loose straw. Covered in hay and dust, they were not fit to be seen and peered out at the visitor from a corner. He glanced around as Tubruk came to meet him, taking the reins.

"You will be received as soon as you are refreshed from your journey."

"I have ridden less than five miles. I am neither dirty nor sweating like an animal. Take me in now, or I'll find the way myself," snapped the old soldier, frowning.

"I see you have lost none of your charm and lightness of manner since you worked with me."