Rowan woke to voices drifting through his window. He dressed quickly and descended to the garden, where he stopped in the doorway.

  The table had been transformed. Croissants, pain au chocolat, at least six different jams, soft cheeses he didn't recognize, sliced fruits arranged in careful patterns, and a bottle of something that sparkled with colours he'd never seen liquid take before. Nicholas and Perenelle sat at the table in traveling robes. Deep blue for Nicholas, forest green for Perenelle. Both looking enormously pleased with themselves.

  "Happy birthday, Rowan!" Nicholas announced. "Well, happy estimated birthday. You don't actually know when you were born, do you? But Perenelle worked it out. Come, sit, eat. Perenelle, show him the calculations."

  Perenelle spread a piece of parchment across the table, pushing jam jars aside to make room. It was covered in astronomical charts, mathematical notations, and what appeared to be a drawing of Rowan's magical signature rendered in silver ink.

  "You were born on August fifteenth," she said. "Twelve years ago today, at approximately three in the morning. The calculations took me most of the night, but I'm confident within a margin of six hours either direction."

  "How?" Rowan asked, sliding into a chair and staring at the parchment. He could make out planetary positions, angles between celestial bodies, complex equations linking them to the swirls and patterns of the magical signature.

  "Astronomical divination." Perenelle tapped the largest diagram. "When you're born, the positions of the planets and stars create a unique pattern. That pattern influences your magical signature. Leaves traces in the very structure of your magic. I examined your signature yesterday while you were distilling the mercury essence, mapped its astronomical components, then worked backward through sixty years of planetary positions until I found the configuration that matched."

  "Divination actually works?" Rowan couldn't keep the skepticism from his voice. Everything he'd read about divination portrayed it as either fraud or guesswork.

  "Real divination works," Nicholas said, spreading jam on a croissant with great concentration. "The problem is that ninety percent of people claiming to practice divination are charlatans or deluded. They see vague patterns in tea leaves and make vaguer predictions. But genuine divination, astronomical, numerical, runic, can reveal accurate information about past, present, and future. It's mathematics, really. Extraordinarily complex mathematics operating on probability spaces and temporal mechanics."

  "The future is not fixed," Perenelle added. "That's where most diviners go wrong. They treat it as though there's one inevitable outcome. Actually, the future is a probability field. Infinite possible outcomes, each with different likelihood based on current conditions. Skilled divination maps that field, identifies the most probable branches, calculates how specific choices will shift the probabilities."

  She pulled out another parchment, this one covered in what looked like a tree diagram with thousands of branching paths. "This is a probability map I created last week, examining potential outcomes for your communication device research. See here. If you pursue the central hub design, seventy-three percent probability of success within five years, but only if you master security runic arrays first. If you try to skip that step, ninety-one percent probability of catastrophic security failure within two years of deployment."

  Rowan studied the branching paths, fascinated despite himself. This wasn't mystical nonsense. This was systematic analysis of cause and effect, probability theory applied to magical outcomes.

  "But how can you calculate magical probability?"

  "The same way you calculate physical probability," Nicholas said. "You identify the relevant variables, determine how they interact, apply mathematical models to project likely outcomes. Magic follows rules, even if we don't fully understand all of them yet. Those rules create patterns. Patterns can be analyzed."

  "Anyway," Perenelle said, rolling up the parchments, "the point is: today is your birthday. We've decided you need a day off."

  "I don't need—"

  "Yes, you do." Nicholas's tone was gentle but firm. "You've been working from sunrise to midnight every day for six weeks. You're twelve years old, Rowan. When I was twelve, I spent half my time climbing trees and the other half getting into trouble with the village boys. You're absorbing alchemical theory and runic arrays like you're preparing for Mastery examinations."

  "I have a lot to learn."

  "And you'll learn it faster if you occasionally rest." Perenelle stood, brushing crumbs from her robes. "We're taking you to Paris. The real Paris. The magical quarters. You need to see the world, not merely study it."

  The protest died in Rowan's throat. They looked so hopeful, so determined to give him something he hadn't asked for but they clearly thought he needed. And perhaps they were right. He couldn't remember the last time he'd done something purely for enjoyment rather than advancement.

  "All right," he said. "Thank you."

  After breakfast, they took a Portkey. An old wine bottle that Nicholas insisted had once contained "an absolutely magnificent Bordeaux, shame to use it for transportation really." And landed in an alley behind what smelled like a bakery. Rowan's stomach was still settling when Nicholas tapped a brick in the wall with his wand.

  The wall rippled like water, then simply wasn't there anymore. An archway stood in its place, leading through into sunlight and space and voices.

  Rowan stepped through and stopped.

  Diagon Alley was cramped, crooked, medieval. This was... grand. Boulevard-wide streets stretched in three different directions, lined with buildings that looked like they belonged in paintings of royal palaces. Four, five, six stories tall, all sweeping curves and ornate balconies and windows that caught the light in ways that suggested the glass wasn't entirely normal. One building leaned at an angle that should have toppled it into the street. Another appeared to be built entirely from bronze that had somehow been convinced to flow like fabric before freezing in elaborate drapes and folds.

  Wizards and witches filled the boulevards. Not the hurried, purposeful crowd of Diagon Alley, but people strolling, sitting at café tables that spilled onto the walkways, engaged in conversations that involved considerable hand gestures. The fashion was different too. Where British wizards favored robes in dark, practical colours, these robes were peacock blue, wine red, emerald green, even one witch in robes that appeared to be made from liquid silver that rippled as she walked.

  A case of theft: this story is not rightfully on Amazon; if you spot it, report the violation.

  "Diagon Alley is functional," Nicholas said. "But the French prefer... spectacle."

  They walked along the main boulevard. Boulevard des étoiles, according to a street sign rendered in flowing script. And Nicholas kept up a running commentary.

  "The Académie Magique de Paris, where scholars do research. Mostly theoretical work, nothing practical. That café, Les Trois Sorcières, best coffee in Europe, though don't tell anyone I said that, the British take offense. The building with the floating gargoyles is the Ministry's public office. The actual Ministry is under Versailles, which tells you everything about how the French approach government. If you're going to have bureaucracy, at least house it in a palace."

  Perenelle led them down a narrower street where the buildings looked older, more medieval. The architecture was different here. Stone carved with symbols Rowan recognized from his alchemical texts. They emerged into a small plaza, and Rowan stopped again.

  The fountain in the center didn't flow with water. Liquid silver poured from the mouths of seven stone figures arranged in a circle, falling into a basin where it formed patterns. Spirals within spirals, geometric shapes that assembled themselves and dissolved and reformed in different configurations.

  "Mercury," Nicholas said. "Magically stabilized. The patterns track current planetary positions in real time. Essential for alchemists who need precise timing. I've spent more hours than I care to count sitting here, waiting for Jupiter to enter the correct house before I could complete a transmutation."

  An elderly wizard sat on a bench beside the fountain, reading a book. He looked up as they approached, squinted, then grinned.

  "Nicholas! Perenelle! I'd heard you were dead. Again." His English was heavily accented but clear.

  "Rumours of our death are perpetually exaggerated," Nicholas replied cheerfully. "Marcel, this is Rowan Ashcroft. My summer student."

  Marcel's eyebrows rose so high they disappeared under his hat. "Student? You haven't taken a student since that disaster with the Belgian boy who blew up your laboratory."

  "That was in 1723, and it was only half the laboratory. Rowan is considerably more careful. He's created a working runic communication device."

  "Has he." Marcel studied Rowan with new interest. "At eleven?"

  "Twelve, as of today," Perenelle corrected.

  "Twelve, then. Well. Perhaps Nicholas hasn't entirely lost his judgment after all." Marcel returned to his book with a dismissive wave that was somehow also approving.

  They spent the morning exploring the alchemical quarter. Nicholas introduced Rowan to other alchemists. Ancient witches and wizards who'd known the Flamels for decades and seemed unsurprised by everything, including a twelve-year-old student. One witch gave Rowan a piece of crystallized dragon's breath "for his birthday, since Nicholas certainly won't have thought to get him anything practical." Another wizard showed him a transmutation in progress. Lead slowly taking on a golden sheen in a crucible that had been maintained at exact temperature for three weeks straight.

  At midday they stopped for lunch at a café overlooking Boulevard des étoiles. The table they chose sat beneath a tree whose leaves were currently amber-coloured. As they ordered, Nicholas speaking rapid French to a waiter who responded with equal rapidity, the leaves shifted to gold.

  "They change based on the conversation happening underneath," Perenelle explained, noticing Rowan's stare. "Gold for pleasant discussion, silver for intellectual debate, deep red for arguments. The French appreciate making magic visible."

  The food arrived: soup that somehow stayed perfect temperature despite sitting in the summer heat, bread that was crusty and soft simultaneously, and wine for the Flamels while Rowan got something that tasted like concentrated grape juice and made his thoughts sharper, clearer.

  "Language-smoothing vintage," Nicholas said, taking a sip of his own wine. "Notice how we're speaking English but that couple over there—" he gestured to a nearby table where two witches were deep in conversation "—they're speaking French, and if you listen, you can understand them perfectly. The wine creates temporary universal comprehension. Very useful for international conferences. Less useful for keeping secrets."

  They ate slowly, and the conversation drifted. Nicholas asked about the mill, about what Rowan had done before Hogwarts, about whether he'd had friends.

  "Acquaintances," Rowan said, surprising himself by answering honestly. Perhaps it was the language-smoothing wine, or perhaps it was simply that they asked like they actually wanted to know. "Other foundlings. But we learned quickly that caring about people was dangerous. Children disappeared. Sent to different workhouses, or adopted, or dead. It was easier not to care."

  The leaves overhead shifted from gold to a darker amber.

  "That explains your approach to friendship now," Perenelle said quietly. "You're close to Iris and Edmund, but you maintain distance. Protective distance."

  "Is that wrong?"

  "Wrong? No. Understandable. But lonely, eventually." She set down her wine glass. "Nicholas and I have been together for five centuries. The work matters. The discoveries, the contributions to magical knowledge, all of it matters. But none of it would mean anything if we were doing it alone. You'll need genuine friends, Rowan. People you can trust completely. Otherwise changing the world becomes carrying it, and nobody can carry the world alone."

  After lunch, they visited a magical bookshop that made Flourish and Blotts look tiny by comparison. Five stories tall, with staircases that moved, shelves that rearranged themselves based on what you were looking for, and books that occasionally flew across the room to land in the hands of customers who didn't yet know they needed them.

  "Pick anything you'd like," Nicholas said. "Birthday present from us. Though perhaps avoid the restricted section on the fifth floor. Those books have been known to bite."

  Rowan spent an hour browsing, eventually selecting three volumes: an advanced text on runic modification techniques, a historical account of magical innovation throughout the centuries, and, because the book literally flew into his hands as he walked past, a treatise on the intersection of divination and probability theory.

  "Interesting choice," Perenelle observed, examining the divination text.

  "After what you explained this morning," Rowan said, "I want to understand the mathematical framework. If probability theory can map possible futures..."

  "This author will serve you well, then. Rigorous methodology throughout."

  They continued exploring as afternoon faded toward evening. Nicholas showed Rowan the Magical Archives. A library containing copies of every magical text published in France since the invention of printing. Perenelle took them to a small shop that sold alchemical ingredients, where Rowan saw substances he'd only read about: powdered philosopher's mercury, crystallized sunlight, essence of phoenix song.

  "These are for advanced work," Perenelle explained. "Years beyond your current level. But it's useful to know they exist and where to find them when you're ready."

  As the sun began setting, they stopped at a small park. Or rather, a magical garden tucked between buildings, accessible only through a specific gate that appeared solid unless you approached it with the right intention.

  The garden was beautiful in a wild, untamed way. Plants from across the world grew together in seemingly chaotic profusion, but Rowan could see the underlying order. Species grouped by magical properties, arrangement following alchemical principles, pathways designed according to sacred geometry.

  "This is where we come to think," Nicholas said, settling onto a bench beneath a tree whose branches formed perfect spirals. "When we're stuck on a problem or need perspective. Sometimes the best thing you can do for your work is to stop working and just... be."

  They sat in comfortable silence as evening light filtered through the leaves. Rowan felt something relax in his chest. A tension he hadn't realized he'd been carrying. The past six weeks had been intense, focused, driven. This pause felt necessary in ways he hadn't anticipated.