“Nasty and unfounded.”

He nodded with a glance at my satchel. “I’ll try and get you in sometime before Judgement Day. Meanwhile you’ll have to sit here and not fidget.”

“They’ve changed the pictures. May I look?”

He brightened. “By all means. Come and tell me if you think this John the Baptist is really by Carpaccio.” A love of great art is something else we have in common.

Halfway around our circuit of the walls, he presented me to the equerry in charge-who looked all of eighteen-and explained that the doge’s doctor required me to deliver all medications directly to the patient but I wouldn’t need more than a minute. It does help to have influential friends. Three more black robes tottered in and were seated with the rest. Then another equerry entered by the inner door.

“That means he’s on his way.” Fulgentio led me in that direction. “He has his own staircase down from the Senate.”

“I do appreciate this,” I said. “I’d have been there for hours. I hope those nine ancient worthies don’t make trouble for you.”

“They can’t. He has to change his clothes before he sees anyone. You’re not anyone.” His grin held no malice.

“Thanks.” In fact, as the doge’s sometime masseur, I had seen him with no clothes on at all. He changes them several times a day and his choice of garb is always carefully noted. He can insult a nation by wearing the wrong socks when meeting with an ambassador. Fulgentio escorted me to the room I had visited that morning and departed with: “Jacopo will take care of you.”

Jacopo regarded me with distaste, knowing that I was not good for a tip. “His Serenity may be some time. How can I help you?”

“You can bring me supper later. Luckily I brought a book to read.”

Knowing which book that would be, he grimaced. I left it in my satchel and resisted the temptation to try one of the doge’s silk-covered chairs. The paintings on the walls were interesting compositions by artists I did not know. I was just edging my way to the nearest one when the doge marched in, monumental in gold state robes and corno.

He said, “Alfeo?” in surprise and turned his back on my bow. “You came to say goodbye?” He began rearranging his draperies. Jacopo waited, holding the ducal chamber pot at the ready.

“No, Your Serenity. But I brought the unguent you requested, and the book.”

“Leave them over there. Your master thinks he can defend himself against a charge of poisoning?”

“Yes, sire.”

I heard a familiar sound. His Serenity sighed happily. “How? The man had a stroke, that’s all. How can you prove a negative?”

“By proving a contrary positive. May I ask Your Serenity a couple of questions that may be vital to the security of the Republic?”

“And more likely are not. Ask.”

“You have met the attorney Ottone Imer?”

“Yes.”

“Offered a choice of refosco, malmsey, or retsina, which did you choose?”

Grunt. “I never drink retsina except with a certain friend I expected to see there. I knew he would choose it, so I did, for old times’ sake. We used to drink it together years ago during the Cyprus campaign. It still tastes like turpentine.”

“Yes, sire. That is the whole point.”

He had completed his business. Jacopo put away the chamber pot and began assisting him adjust his draperies. It was a few moments before the doge turned to scowl at me. “What are you blathering about, Alfeo?

“Could Your Serenity have switched glasses with your friend?”

“Mother of God!” The ruddy ducal complexion paled visibly. “He really was poisoned?”

“My master believes so.”

The doge sank onto a chair, official business forgotten. “What evidence has he?”

“His professional opinion, sire-his medical opinion.” Not something he had read in the stars, I meant. “He detected symptoms of a certain drug. That is why he asks if you might have accidentally switched glasses with the procurator.”

Nasone pondered for a moment. “I cannot swear we didn’t. We looked at some books together.”

“But you noticed no sudden change in the taste of the wine? You had no intestinal problems later, no irregular heart beat or excessive saliva?”

Mention a symptom to some people and they will at once imagine experiencing it, but Pietro Moro is the least suggestible of men, a human barnacle. “No. I hardly touched it before I spoke with Bertucci. When we had finished our discussion, I gulped down the rest and left.”

“Who could have known Your Serenity would be there?”

He leaned back and glared at me. Legally doges may be figureheads, but they usually get what they want. They do not appreciate being cross-examined by mere apprentices.

“Only Bertucci himself. This is your master asking all this, not just apprentice Alfeo Zeno wasting an afternoon to get out of honest work?”

“I am here by his leave and will report every word to him, I swear.”

He stared hard at me. “We are both liable to get in trouble over this, lad. We ought to be singing this song to the state inquisitors. And they may be a lot less gentle with you than they will be with me.”

I said, “The matter is still in doubt, sire. The drug my master detected can also be a physic and we have not yet learned whether or not Procurator Orseolo’s physician had prescribed it. If he had, then the procurator’s death might have been due to an accidental overdose.”

Moro grunted again. “Listen, then. The Imer man wrote to tell me he had some rare books for sale. I sent for him and looked them over. Most were the usual monastery scrapings-tedious preaching by long-dead bores. But there were a couple I found interesting. One was a fine fragment of Virgil’s Aeneid and the other was a play I did not know, which Imer claimed was a lost Euripides. It looked exciting, but of course I was noncommittal. I named an agent who should be invited to the general viewing and might bid on my behalf. At the end of my meetings that day, I found a note from Bertucci Orseolo confirming that he would be going to the sale in person. He had heard disturbing rumors about Imer and wondered if the books were all they seemed to be.”

So that was how it had been done? The doge must have seen a reaction in my face. He paused, but I outwaited him, all eager and expectant.

“It was too late for me to be sure of getting hold of my agent to change my instructions. I decided to go and see for myself if there had been substitutions made. There had not. Your master agreed that the Virgil was a very early, very valuable copy. He said he thought the Meleager was just Hellenistic imitation. So did Bertucci. I was not at all sure I believed either of them, but a doge must not risk being made to seem a fool, so I had a footman fetch my agent, told him not to bid on the Euripides, and left. You’re suggesting I was lured there to be poisoned?”

The valet was chalk-white.

“I think the possibility should be kept in mind, Your Serenity.”

“Bah! A doge is not a king. I have no real power. Why should anyone try to assassinate me, huh?”

“Ambition, sire? Terror? If the sultan can strike you down, he can make other rulers tremble.”

“Ridiculous! That’s far-fetched. And I very rarely go charging out of the palace on a whim, Alfeo.”

“Of course not, sire. But if you had been taken ill later, you might not have mentioned that you had done so. It is only a theory so far, I agree. Why should anyone want to kill the procurator either? My master believes he was poisoned in that room.”

“Bah! Your master claims to be able to read the future, too. The past is usually a lot easier.” Pietro Moro glared at me, his mouth moving as if he wanted to grind his teeth. He heaved himself to his feet, and paused. “I won’t accept any babbling about planets, but if my old friend Bertucci really was murdered, just tell me who did it and I will see his head roll across the Piazzetta, understand? I don’t care who he is!”