As Clarice listened, fear rippled over her features, only to be replaced by her customary hardness. She narrowed her eyes at me, searching to see if I had detected her instant of weakness, threatening me in case I had.

  “Straight down to the kitchen with you. No stopping, no speaking to anyone,” she ordered.

  I obeyed and headed downstairs, but soon realized I was too nervous to eat. I wandered instead toward the great hall, where Aunt Clarice and Cardinal Passerini were engaged in strenuous conversation. His Eminence’s voice was muffled, but I caught an impassioned word or two uttered by Aunt Clarice:

  You fool.

  What did Clement expect, the idiot?

  Their conversation centered on the Pope—born Giulio de’ Medici—whose influence helped keep our family in power. Even as a child, I understood enough of politics to know that my distant cousin Pope Clement was at odds with the Holy Roman Emperor Charles, whose troops had invaded Italy; Rome was in especial danger.

  Abruptly, the door swung open, and Passerini’s head appeared as he called for Leda, Aunt Clarice’s slave. The cardinal was grey-faced, his breath coming hard, the corners of his mouth pulled down by agitation. He waited in the doorway with an air of desolate urgency until Leda appeared, at which point he ordered her to bring Uncle Filippo, Ippolito, and Alessandro.

  Within moments, Ippolito and Sandro were ushered inside. Clarice must have come to stand near the doorway, for I could hear her say, quite clearly, to someone waiting in the hall:

  We need men, as many as will fight. Until we know their number, we must tread carefully. Assemble as many as you can by nightfall, then come to me. A strange hesitancy crept into her tone. And send Agostino to fetch the astrologer’s son— now.

  I heard my uncle Filippo’s low assent and departure, then the door closed again. I remained a few minutes, trying vainly to interpret the sounds emanating from the chamber; defeated, I wandered toward the staircase leading to the children’s rooms.

  Six-year-old Roberto, Clarice’s youngest, came running in my direction, wailing and wringing his hands. His eyes were squeezed tightly shut; I barely caught him in time to stop him from knocking me down.

  I was small, but Roberto was smaller still. He smelled of heat and slightly sour sweat; his cheeks were flushed and tear-streaked, and his girlishly long hair clung to his damp neck.

  At that instant the boys’ nursemaid appeared behind him. Ginevra was a simple, uneducated woman, dressed in worn cotton skirts covered by a white apron, her hair always wrapped in a scarf. On that morning, however, Ginevra’s scarf and nerves were undone; a lock of golden hair had fallen across her face.

  Roberto stamped his foot at me and emitted a scream. “Let me go!” He struck out with little fists, but I averted my face and held him fast.

  “What is it? Why is he frightened?” I called to Ginevra as she neared.

  “They’re coming after us!” Robert howled, spewing tears and spittle. “They’re coming to hurt us!”

  Ginevra, dull with fright, answered, “There are men at the gate.”

  “What sort of men?” I asked.

  When Ginevra would not answer, I ran upstairs to the chambermaids’ quarters, which overlooked the stables and the gate that opened onto the busy Via Larga. I dragged a stool to the window, stepped onto it, and flung open the shutters.

  The stables stood west of the house; to the north lay the massive iron gate that kept out trespassers. It was closed and bolted; just inside it stood three of our armed guards.

  On the other side of its spiked bars, the street hosted lively traffic: a flock of Dominican monks on foot from nearby San Marco, a cardinal in his gilded carriage, merchants on horseback. And Roberto’s men—perhaps twenty in those early hours, before Passerini’s news had permeated Florence. Some stood along the edges of the Via Larga, others in front of the iron gate near the stables. They gazed on our house with hawkeyed intensity, waiting for prey to emerge.

  One of them shouted exuberantly at the passing crowd. “Did you hear? The Pope has fallen! Rome lies in the Emperor’s hands!”

  At the palazzo’s front entrance, a banner bore the Medici coat of arms so proudly displayed throughout the city: six red balls, six palle, arranged in rows upon a golden shield. Palle, palle! was our rallying cry, the words on our supporters’ lips as they raised their swords in our defense.

  As I watched, a wool dyer, his hands and tattered tunic stained dark blue, climbed onto his fellow’s shoulders and pulled down the banner to shouts of approval. A third man touched a torch to the banner and set it ablaze. Passersby slowed and gawked.

  “Abaso le palle!” the wool dyer cried, and those surrounding him picked up the chant. “Down with the balls! Death to the Medici!”

  In the midst of the tumult, the iron gates opened a crack, and Agostino—Aunt Clarice’s errand boy—slipped out unobserved. But as the gate clanged shut behind him, a few of the men hurled pebbles at him. He shielded his head and dashed away, disappearing into the traffic.

  I leaned farther out of the open window. Behind the thin streams of smoke rising from the burning banner, the wool dyer spied me; his face lit up with hatred. Had he been able to reach up into the window, he would have seized me—an eight-year-old girl, an innocent—and dashed my brains against the pavement.

  “Abaso le palle!” he roared. At me.

  I withdrew. I could not run to Clarice for comfort—she would not have provided it even had she been available. I wanted my cousin Piero; nothing cowed him, not even his formidable mother . . . and he was the one person I trusted. Since he was not in the boys’ classroom receiving his lessons, I hurried to the library.

  As I suspected, Piero was there. Like me, he was an insatiable student, often demanding more of his tutors than they knew, with the result that we frequently encountered each other huddled behind book. Unlike me, he was, at a rather immature sixteen, still cherub-cheeked, with close-cropped ringlets and a sweet, ingenuous temperament. I trusted him more than anyone, and adored him as a brother.

  Piero sat cross-legged on the floor, squinting down at the heavy tome open in his lap, utterly captivated and utterly calm. He glanced up at me, and just as quickly returned to his reading.

  “I told you this morning about Passerini coming,” I said. “The news is very bad. Pope Clement has fallen.”

  Piero sighed calmly and told me the story of Clement’s predicament, which he had learned from the cook. In Rome, a secret passageway leads from the Vatican to the fortress known as the Castel Sant’Angelo. Emperor Charles’s mutinous soldiers had joined with anti-Medici fighters and attacked the Papal Palace. Caught unawares, Pope Clement had run for his life—robes flapping like the wings of a startled dove—across the passage to the fortress. There he remained, trapped in his stronghold by jeering troops.

  Piero was totally unfazed by it all.

  “We’ve always had enemies,” he said. “They want to form their own government. The Pope has always known about them, but Mother says he grew careless and missed clear signs of trouble. She warned him, but Clement didn’t listen.”

  “But what will happen to us?” I said, annoyed that my voice shook. “Piero, there are men outside burning our banner! They’re calling for our deaths!”

  “Cat,” he said softly and reached for my hand. I let him draw me down to sit beside him on the cool marble.

  “We always knew the rebels would try to take advantage of something like this,” Piero said soothingly, “but they aren’t that organized. It will take them a few days to react. By then, we’ll have gone to one of the country villas, and Mother and Passerini will have decided what to do.”

  I pulled away from him. “How will we get to the country? The crowd won’t even let us out of the house!”

  “Cat,” he chided gently, “they’re just troublemakers. Come nightfall, they’ll get bored and go away.”

  Before he could say anything further, I asked, “Who is the astrologer’s son? Your mother sent Agostino to
fetch him.”

  He digested this with dawning surprise. “That would be Ser Benozzo’s eldest, Cosimo.”

  I shook my head, indicating my ignorance.

  “The Ruggieri family has always served as the Medicis’ astrologers,” Piero explained. “Ser Benozzo advised Lorenzo il Magnifico. They say his son Cosimo is a prodigy of sorts, and a very powerful magician. Others say such talk is nothing more than a rumor circulated by Ser Benozzo to help the family business.”

  I interrupted. “But Aunt Clarice doesn’t put a lot of faith in such things.”

  “No,” he said thoughtfully. “Cosimo wrote Mother a letter well over a week ago. He offered his services; he said that serious trouble was coming, and that she would need his help.”

  I was intrigued. “What did she do?”

  “You know Mother. She refused to reply, because she felt insulted that such a young man—a boy, she called him—should presume that she would need help from the likes of him.”

  “Father Domenico says it’s the work of the Devil.”

  Piero clicked his tongue scornfully. “Magic isn’t evil—unless you mean for it to hurt someone—and it’s not superstition, it’s science. It can be used to make medicines, not poisons. Here.” He proudly lifted the large volume in his lap so that I could see its cover. “I’m reading Ficino.”

  “Who?”

  “Marsilio Ficino. He was Lorenzo il Magnifico’s tutor. Old Cosimo hired him to translate the Corpus Hermeticum, an ancient text on magic. Ficino was brilliant, and this is one of his finest works.” He pointed at the title: De Vita Coelitus Comparanda.

  “Gaining Life from the Heavens,” he translated. “Ficino was an excellent astrologer, and he understood that magic is a natural power.” He grew animated. “Listen to this. . . .” He translated haltingly from the Latin. “ ‘Using this power of the stars, the Magi were first to worship the infant Christ. Therefore, why fear the name Magus, a name which is pleasing to the Gospel?’ ”

  “So this astrologer’s son is coming to bring us help,” I said. “Help from God’s stars.”

  “Yes.” Piero gave a reassuring nod. “Even if he weren’t, we would still be all right. Mother might complain, but we’ll just go to the country until it’s safe again.”

  I let myself be convinced—temporarily. On the library floor, I nestled against my cousin and listened to him read in Latin. This continued until Aunt Clarice’s slave Leda—pale, frowning, and heavily pregnant—appeared in the doorway.

  “There you are.” She motioned impatiently. “Come at once, Caterina. Madonna Clarice is waiting.”

  The horoscopist was a tall, skinny youth of eighteen, if one estimated generously, yet he wore the grey tunic and somber attitude of a city elder. His pitted skin was sickly white, his hair so black it gleamed blue; he brushed it straight back to reveal a sharp widow’s peak. His eyes seemed even blacker and held something old and shrewd, something that fascinated and frightened me. He was ugly: His long nose was crooked, his lips uneven, his ears too large. Yet I did not want to look away. I stared, a rude, stupid child.

  Aunt Clarice said, “Stand there, Caterina, in the light. No, save your little curtsy and just hold still. Leda, close the door behind you and wait in the hall until I call you. I’ll have no interruptions.” Her tone was distracted and oddly soft.

  After a worried glance at her mistress, Leda stole out and quietly shut the door. I stepped into a pane of sunlight and stood dutifully a few paces from Clarice, who sat beside the cold fireplace. My aunt was arguably the most influential woman in Italy and old enough to be this young man’s mother, but his presence—calm and focused as a viper’s before the strike—was the more powerful, and even Clarice, long inured to the company of pontiffs and kings, was afraid of him.

  “This is the girl,” she said. “She is plain, but generally obedient.”

  “Donna Caterina, it is an honor to meet you,” the visitor said. “I am Cosimo Ruggieri, son of Ser Benozzo the astrologer.”

  His appearance was forbidding, but his voice was beautiful and deep. I could have closed my eyes and listened to it as if it were music.

  “Think of me as a physician,” Ser Cosimo said. “I wish to conduct a brief examination of your person.”

  “Will it hurt?” I asked.

  Ser Cosimo smiled a bit more broadly, revealing crooked upper teeth.

  “Not in the least. I have already completed a portion; I see that you are quite short for your age, and your aunt reports that you are rarely sick. Is that true?”

  “Yes,” I answered.

  “She is always running in the garden,” Clarice offered palely. “She rides as well as the boys do. By the time she was four, we could not keep her from the horses.”

  “May I . . . ?” Ser Cosimo paused delicately. “Could you lift your skirts a bit so that I can examine your legs, Caterina?”

  I dropped my gaze, embarrassed and perplexed, but raised the hem of my dress first above my ankles and then—at his gentle urging—to my knee.

  Ser Cosimo nodded approvingly. “Very strong legs, just as one would expect.”

  “And thighs,” I said, dropping my skirts. “Jupiter’s influence.”

  Intrigued, he smiled faintly and brought his face closer to mine. “You have studied such things?”

  “Only a little,” I said. I did not tell him that I had just been listening to Piero reading Ficino’s attributions for Jupiter.

  Aunt Clarice interrupted, her tone detached. “But her Jupiter is in detriment.”

  Ser Cosimo kept his penetrating gaze focused on me. “In Libra, in the Third House. But there are ways to strengthen it.”

  I braved a question. “You know about my stars, then, Ser Cosimo?”

  “I have taken an interest in them for some time,” he replied. “They present a great many challenges and a great many opportunities. May I ask what moles you have?”

  “There are two on my face.”

  Ser Cosimo lowered himself onto his haunches, bringing us eye to eye. “Show me, Caterina.”

  I smoothed my dull, mousy hair away from my right cheek. “Here and here.” I pointed at my temple, near the hairline, and at a spot between my jaw and ear.

  He drew in a sharp breath and turned to Aunt Clarice, his manner grave.

  “Is it bad?” she asked.

  “Not so bad that we cannot repair it,” he said. “I will return tomorrow at this very hour, with talismans and herbs for her protection. You must employ them according to my precise directions.”

  “For me,” Clarice said swiftly, “and for my sons, not just for her.”

  The astrologer’s son cast a sharp glance at her. “Certainly. For everyone who has need.” A threat crept into his tone. “But such things bring no benefit unless they are used exactly as prescribed—and exactly for whom they are created.”

  Clarice dropped her gaze, intimidated—and furious at herself for being so. “Of course, Ser Cosimo.”

  “Good,” he said and bowed his farewell.

  “God be with you, Donna Clarice,” he said graciously. “And with you, Donna Caterina.”

  I murmured a good-bye as he walked out the door. It was odd watching a youth move like an elderly man. Many years later, he would confess to having been fifteen years old at the time. He had used the aid of a glamour, he claimed, to make himself appear older, knowing Clarice would never have listened to him otherwise.

  As soon as the astrologer was out of earshot, Aunt Clarice said, “I’ve heard rumors of this one, the eldest boy. Smart, true—smart at conjuring devils and making poisons. I’ve heard that his father despairs.”

  “He isn’t a good man?” I asked timidly.

  “He is evil. A necessary evil, now.” She lowered her face into her hand and began to massage her temple. “It’s all falling apart. Rome, the papacy, Florence herself. It’s only a matter of time before the news spreads all over the city. And then . . . everything will go to Hell. I need to figure out what to do befor
e . . .” I thought I heard tears, but she gathered herself and snapped open her eyes. “Go to your chambers and study your texts. There will be no lessons today, but you’d best comport yourself quietly. I won’t tolerate any distractions.”

  I left the great hall. Rather than follow my aunt’s instructions to go upstairs, I dashed out to the courtyard. The astrologer’s son was there, moving swiftly for the gardens.

  I cried out, “Ser Cosimo! Wait!”

  He stopped and faced me. His expression was knowing and amused, as if he had completely expected to find a breathless eight-year-old girl tearing after him.

  “Caterina,” he said, with odd familiarity.

  “You can’t leave,” I said. “There are men outside calling for our deaths. Even if you got out safely, you would never be able to come back again.”

  He bent forward and faced me at my level. “But I will get out safely,” he said. “And I will come back again tomorrow. When I do, you must find me alone in the courtyard or the garden. There are things we must discuss, unhappy secrets. But not today. The hour is not propitious.”

  As he spoke, his eyes hardened, as if he was watching a distant but approaching evil. He straightened and said, “But nothing bad will happen. I will see to it. We will speak again tomorrow. God keep you, Caterina.”

  He turned and strode off.

  I hurried after him, but he walked faster than I could run. In seconds he was at the entrance to the stables, in view of the large gate leading to the Via Larga. I hung back, afraid.

  The palazzo was a fortress of thick stone; its main entry was an impenetrable brass door positioned in the building’s center. To the west lay the gardens and the stables, viewable from the street behind a north-facing iron gate that began where the citadel proper ended.