"Remember this. This is why we slog through battlefields a thousand miles from home."

"I could never forget today," Gaius replied honestly, and the grip tightened for a moment before letting go.

Marius walked to where a white bull was held steady by four of his men. A great black-bristled boar was similarly held, but snorted and chafed against the ropes.

Marius accepted a taper and lit the incense in a golden bowl. His men bowed their heads and he stepped forward with his dagger, speaking softly as he cut the two throats.

"Bring us all through war and pestilence, safe home to our city," he said. He wiped the blade on the skin of the bull as it sank to its knees, bawling its fear and pain. Sheathing the dagger, he put an arm around Gaius's shoulder, and together they walked up the wide white steps of the Senate building.

It was the seat of power in all the world. Columns that could not be girdled by three large men holding their arms outstretched supported a sloping roof that was itself mounted with distant statues. Bronze doors that dwarfed even Marius stood closed at the top of the steps. Made of interlocking panels, they looked as if they were designed to stand against an army, but as the pair ascended, the doors opened silently, pulled from within. Marius nodded and Gaius swallowed his awe.

"Come, lad, let us go and meet our masters. It would not do to keep the Senate waiting."

Marcus wondered at the tight expression on Renius's face as they traveled the road to the sea. From dawn until late in the afternoon, they had trotted and walked the stone surface without a word. He was hungry and desperately thirsty, but would not admit it. He had decided at noon that if Renius wanted to do the whole trip to the docks without stopping, then he would not give up first.

Finally, when the smell of dead fish and seaweed soured the clean country air, Renius pulled up and, to his surprise, Marcus noticed the man was pale.

"I want to break off here, to see a friend of mine. You can go on to the docks and get a room there. There's an inn…

"I'm coming with you," Marcus said curtly.

Renius's jaw tightened and he muttered "As you please," before turning off the main road onto a lesser track.

Mystified, Marcus followed him as the track wound through woods for miles. He didn't ask where they were going, just kept his sword loose in his scabbard in case there were bandits hidden in the foliage. Not that a sword would be much use against a bow, he noted.

The sun, where it could be seen at all through the canopy, had dropped down toward the horizon when they rode into a small village. There were no more than twenty small houses, but the place had a well-kept air to it. Chickens were penned and goats tethered outside most dwellings, and Marcus felt no sense of danger. Renius dismounted.

"Are you coming in?" he said as he walked to a door.

Marcus nodded, and tied the two horses to a post. Renius was inside by the time he was done, and he frowned, resting a hand on his dagger as he went in. It was a little dark inside, lit only by a candle and a small fire in the hearth, but Marcus could see Renius hugging an ancient old man with his one good arm.

"This is my brother, Primus. Primus, this is the lad I mentioned, traveling with me to Greece."

The man must have been eighty years old, but he had a firm grip.

"My brother has written about your progress and the other one, Gaius. He doesn't like anyone, but I think he dislikes you two less than most people."

Marcus grunted.

"Take a seat, boy. We have a long night ahead of us." He went over to his small wood fire and placed a long metal poker in its fiery heart.

"What is happening?" Marcus asked.

Renius sighed. "My brother was a surgeon. He is going to take my arm off."

Marcus felt a sick horror come over him as he realized what he was going to see. Guilt too flushed his face. He hoped Renius wouldn't mention how he had been injured. To cover his embarrassment, he spoke quickly. "Lucius or Cabera could have done it, I'm sure."

Renius silenced him with a raised hand.

"Many people could do the job, but Primus was… is the best."

Primus cackled, revealing a mouth with very few teeth. "My little brother used to chop people up and I would stitch them back together," he said cheerfully. "Let us have a light for this." He turned to an oil lamp and lit it from a candle. When he turned back, he squinted at Renius.

"I know my eyes are not what they were, but did you dye your hair?"

Renius flushed. "I do not want to be told your eyes are failing before you start cutting me, Primus. I am aging well, that is all."

"Damned well," Primus agreed. He emptied a leather satchel of tools onto a table surface and gestured to his brother to sit down. Looking at the saws and needles, Marcus wished he had taken the advice and gone on to the docks, but it was too late. Renius sat and sweat dripped from his forehead. Primus gave him a bottle of brown liquid and he raised it, taking great swallows.

"You, boy, get that rope and tie him to the chair. I don't want him thrashing around and breaking my furniture."

Feeling sick, Marcus took the lengths of rope, noting with a quiet horror that they were all stained with ancient blood. He busied himself with the knots and tried not to think about it.

After a few minutes, Renius was immobile and Primus poured the last of the brown liquid into his throat.

"That's all I have, I'm afraid. It will take the edge off, but not much."

"Just get on with it," Renius growled through clenched teeth.

Primus raised a thick piece of leather to his mouth and told him to bite it. "It will save your teeth, at least."

He turned to Marcus. "You hold the arm still. It will make the sawing quicker." He placed Marcus's hands on the corded bicep and checked that the ropes held the wrist and elbow securely. He slid a vicious-looking blade from his pack and held it up to the light, squinting at the edge.

"I will cut a circle around the bone, then another below it to give the saw room. We will take out a ring of flesh, saw the bone, and cauterize the leaks. It must be fast, or he will bleed to death. I will leave enough skin to fold over the stump, then it must be bound securely. He must not touch it for the first week, then, each morning and night, he should rub in an ointment I will give you. I have no leather cup for the stump; you will have to make or buy one yourself."

Marcus swallowed nervously.

Primus plunged his fingers into the muscles and nerves of the useless arm, feeling around. After a minute, he tutted to himself, his face sad.

"It is as you said. There is no feeling at all. The muscles are cut and beginning to waste. Was it a fight?"

Involuntarily, Marcus glanced up at Renius. The eyes above the bared teeth were manic and he looked away. "A training accident," he said softly, his voice muffled by the leather piece.

Primus nodded and pressed the blade to the skin. Renius tensed and Marcus gripped the arm.

With deft, sure strokes, Primus cut deep, stopping only to dab at the wound with a piece of cloth to remove obscuring gouts of blood. Marcus felt his stomach heave, but Renius's brother seemed completely relaxed, blowing air between his teeth in something close to a little tune. White bone sheathed in a pink curtain appeared, and Primus grunted in satisfaction. After only a few seconds, he had reached the bone all the way around and begun the second cut.

Renius looked down at the gory hands of his brother, and his lip curled into a bitter grimace. After that, he stared at the wall, his jaw clenched. A slight tremble of his breathing was the only sign of his fear.

Blood spilled over Marcus's hands, the chair, the floor, everything. There were lakes of it inside Renius and it was all coming out, shining and wet. The second ring was gouged out, leaving great flaps of hanging skin. Primus notched and sliced, removing the dark lumps of meat and dropping them carelessly on the floor.