Did he believe what he was saying? Did he not know the truth of the matter? Even I had been fooled for a while into believing that Meto had betrayed Caesar-Meto, who fought for Caesar in Gaul, transcribed the great man's memoirs, and shared his tent. But the truth was far more complicated. Meto's betrayal had been an elaborately constructed sham, a ruse meant to trick Caesar's opponents into trusting Meto and taking him into their ranks. Meto had not betrayed Caesar; Meto was Caesar's spy.

That was why I had hoped to find Caesar. Caesar himself had concocted the scheme to fake Meto's betrayal. With Caesar alone I could have spoken freely. But how much did Trebonius know? If Caesar had kept him in ignorance, then I would never be able to convince him of the truth. Indeed, it might be dangerous to do so-dangerous to Meto, if he still lived…

Trebonius's flat tone and the steely look in his eyes betrayed no double meaning. As far as I could tell, when he spoke of Meto's betrayal, he spoke what he believed to be the truth. But was he only doing so because he thought I was ignorant of the facts? Were we playing a game of shadow puppets, each aware of the truth but wary of revealing it to the other?

I tried to draw him out. "Trebonius, before Meto left Rome, I saw him, spoke to him. Despite appearances, I don't believe he's a traitor to Caesar. I know he's not. And surely, knowing Meto as you do-knowing Caesar-you must know that as well. Don't you?"

He shook his head curtly. His expression grew sterner. "Listen, Gordianus, your son was my friend. His defection was a knife, not just in Caesar's back, but in mine-and in the back of every man who's fought with Caesar. Even so, strangely enough, I can't say I bear a grudge against him. These are terrible times. Families are torn apart-brother against brother, husband against wife, even son against father. It's a wretched business. Meto made a choice-the wrong choice-but for all I know, there was honor behind it. He's my enemy now, but I don't hate him. As for you, I don't blame you for what your son has done. You're free to go. But if you've come here to collude with Meto against Caesar, I'll deal with you as harshly as I would with any traitor. I'll see you crucified."

So much for trying to draw him out. If Trebonius knew the truth, he was not going to reveal himself to me.

He attacked the few scraps of flesh that still remained on the pork shank, then went on. "My advice to you, Gordianus, is to get a good night's sleep, then turn around and head straight back to Rome. If you hear from Meto, tell him that Caesar will have his head. If you hear nothing, wait for news. The waiting is hard, I know, but you'll learn of Meto's fate sooner or later. You know the Etruscan saying: `Once grieving starts it never ends, so there's no point in grieving an hour earlier than you must.' "

I cleared my throat. "That's the problem, you see. The day before I left Rome I received a message from someone inside Massilia. The message said… that Meto had been killed. That's why I've come all this way, to find out-whether my son is still alive… or not."

Trebonius sat back. "Who sent you this message?"

"It was unsigned."

"How did it come to you?"

"It was left on the doorstep of my house on the Palatine."

"Did you bring it with you?"

"Yes." I reached into the pouch that hung from my belt and pulled out a small wooden cylinder. With my little finger I extracted a rolled scrap of parchment. Trebonius snatched it from me as he might a dispatch from a messenger.

He read aloud. " `Gordianus: I send you sad news from Massilia. Your son Meto is dead. Forgive my bluntness. I write in haste. Know that Meto died loyal to his cause, in the service of Rome. His was a hero's death. He was a brave young man, and, though not in battle, he died bravely here in Massilia.' " Trebonius handed the message back to me. "This arrived anonymously, you say?"

"Yes."

"Then you don't even know that it came from Massilia. It might be a hoax perpetrated on you by someone in Rome."

"Perhaps. But is it possible that the message could have come from Massilia?"

"Could a Massilian ship have slipped through our blockade, you mean? Officially, no."

"But in reality?"

"There may have been a few… occurrences… especially at night. The Massilians are expert sailors, and the local winds favor sailing out of the harbor by night. Caesar's ships are moored behind the big islands just outside the harbor, but a small ship might have slipped by them in the dark. But what of it? What if the message did come from Massilia? Why is it unsigned if the writer tells the truth?"

"I don't know. Since the day Caesar crossed the Rubicon, everyone wears a mask. Intrigues and deceptions… secrecy for secrecy's sake…"

"If Meto is dead, the writer should have sent you some tangible memento-Meto's citizen's ring, at least."

"Perhaps Meto drowned and his body was lost. Perhaps he died by-" In my imagination I pictured flames and blanched at the thought. "Don't you think I've gone over this a thousand times in my own mind, Trebonius? It's the first thing I think of when I wake, the last thing I think of before I sleep. Who sent this message, why, from where, and is it true or not? What's become of my son?" I stared at Trebonius, letting the misery show on my face. Surely, if he knew whether Meto was alive or dead, he would tell me at least that much to alleviate a father's suffering. But his grim countenance was as changeless as a statue's.

"I see your dilemma," he said. "A nasty business-uncertainty. I sympathize. But I can't help you. On the one hand, if Meto is alive and in Massilia, he's cast his lot with Domitius and become a traitor to Caesar. You can't get into the city to see him, and I wouldn't allow it if you could. You'll have to wait until the Massilians surrender, or until we pull the walls down. Then, if we find Meto… do you really want to be here when that happens, to witness his fate as a traitor? On the other hand, if Meto is already dead, there's still no way you can get into Massilia and find out how it happened or who sent that message. Look, I'll promise you this: When we take Massilia, if there's news of Meto, I'll let you know what I find out. If Meto himself is taken, I'll let you know what Caesar decides to do with him. I can promise no more than that. There, your task is accomplished. You can go back to Rome now, knowing that you've done all that any father could. I'll see that you have a place to sleep tonight. You'll leave in the morning." These last words had the unmistakable ring of an order.

He studied the fleshless bone in his fist. "But where are my manners? You must be starving, Gordianus. Go, join your son-in-law in the officers' mess. The stew's not as bad as it looks, really."

I left the tent and followed my nose to the mess. Despite the growling in my belly, I had lost my appetite.