# Prologue: Paris From the Rooftops Paris was always beautiful from far away. Beneath the deep blue-black sky, the Seine bent through the city like a strip of dark cloth. Bridges crossed it one after another, each rimmed in gold, each seeming to float above the water. Lights still burned in the windows along the river, and below them, cars slid through the streets, dragging long red and white streaks behind them. Some people would call it romantic. Others would call it the nightscape of the most refined city in the world. But from high above, if you looked a little closer, that beauty quickly showed another face. The farther the view moved from the curve of the Seine, the more the postcard version of Paris fell away. Old stone buildings rose into focus instead: neat rooflines, iron balcony rails, and dark windows tucked beneath the top floors. This was a height where the noise of Paris barely reached. A place where money, taste, and secrets learned to hide behind the quietest possible face. Inside a penthouse with its curtains half drawn, the air of a party that had just ended still lingered. Expensive perfume, wine, and the smell of polished old wood tangled together in the room, but none of them dominated the space. Something sharper did. Something colder. The metallic scent of blood, just beginning to cool. The first thing to break the silence was not a footstep. "Casa. West corridor is clear. Two internal cameras are still dead, and the elevator hall is unchanged." The voice flowed into his ear, low and precise. A thin trace of humor clung to the end of it, but the rhythm never slipped. Two short, dry electronic tones cracked through the comm a second later. Mitchell's signal. His way of speaking without words. Hermes added at once, "Mitchell says we're clean. Exterior exit route is still open." The man in black standing in the center of the room stopped walking. Casa tilted his head by the smallest degree, sending a signal in place of an answer. His hands were empty. His movements were quiet. Nothing loud had followed him through the penthouse. No struggle. No panic. Only results. Behind the large planter in the indoor garden, one guard lay on his side. The skin beneath his jaw was red, but he was still breathing. Beside the bar, another man hung crookedly over a high chair. His hand had stopped halfway inside his jacket. The pistol had never made it out. Beneath his shirt collar, a short and precise cut showed in the skin. Apart from that single line, the area around him was almost too clean. A third guard lay in front of the floor-to-ceiling window. His body faced the glass, as if he had still been searching for a way out at the very end, but he too showed almost no sign of violence beyond the narrow wound left at his throat. Casa moved between the fallen men. His eyes did not linger on what was already done. Beyond the living room, the study door stood half-open. Inside, the owner of the penthouse lay beside his desk. One hand had stopped near an overturned crystal glass. The other reached toward a drawer he had never managed to open. There was no lasting terror on his face, no drawn-out pain. He looked as if one final second had frozen in place. Casa swept his gaze over the desk, the open cabinet, and the wall panels. "No time," Hermes said. The humor had vanished from his voice. "Ledger." Casa did not answer. His hands moved quickly, but never in a hurry. He did not look like a man searching for something. He looked like a man analyzing the space under the assumption that something had been hidden there. When he passed through the study and stepped back into the living room, his foot stopped. The difference was slight. The marble floor should have felt the same everywhere. Same temperature. Same density. Same echo. But at the point where the living room met the corridor, the feeling beneath his toes changed by a fraction. Too faint to call it a sound. Too clear to dismiss as a feeling. The kind of tiny resonance that existed only when there was empty space underneath. Casa lowered his gaze. "What?" Hermes reacted immediately. "You stopped. Found something?" Casa stepped on the same spot again. The same hollow response came back. He crouched and ran a gloved hand along the seam in the floor. The finish was so clean the eye would have passed over it, but the pattern in one marble slab sat just a little out of place with the others. Casa flicked his wrist, released the blade, and drove the tip into the corner seam with exact pressure. Click. With a short metallic sound, the locked panel lifted by a hair. Casa slid his fingers into the gap and raised it without a sound. Beneath it was a shallow compartment lined in dark velvet. Bundles of cash, jewels in a velvet case, and several encrypted drives had been arranged neatly inside. Exactly the sort of things one would expect to find in a hidden safe. But Casa's attention fixed on the separate bundle pushed deeper in. A stack of parchment sealed in wax. A thin ledger. An encrypted drive. The wax seal resembled a triangle with wings and nothing else. Beneath it lay a second, fainter mark. It was not a cross. Not a family crest. Not a corporate logo. It spread like petals, then tapered into the edge of a blade. Hermes' voice lost the last trace of amusement. "That doesn't look like a ledger." Casa took the parchment, the ledger, and the drive. The texture against his palm felt wrong. Between the rough grain of old paper, there was a chill he could not explain. He looked down at the wax mark for a brief moment. He had never seen the seal before, yet his eyes lingered on it one beat longer than they should have. In the study, the needle of the record player reached the end and began spitting a thin scratch of noise. While that sound scraped through the room, Casa stood still for a breath. The thing that had ended here tonight was not just one assassination. He could feel that much in his fingertips. It had no name yet, but it felt like the creeping unease that spreads through the blood when something old and buried is disturbed. "Casa." This time, there was no smile in Hermes' voice. "Elevator is moving downstairs. We may have company coming up." Casa slipped the parchment, ledger, and drive into the inside of his jacket, then lowered the floor panel back into place. The slab settled with such precision that it looked as if nothing had ever been there. He gave the room one last look. Beyond the glass, the lights of Paris still glittered. Inside, the fallen men were silent as sleepers. The study door remained half-open, and the owner of the penthouse could no longer protect a single secret. Casa turned away. His steps were as silent as they had been when he entered. Just before crossing the threshold, he paused for the briefest moment. With his fingertips, he checked the weight of the bundle inside his jacket one more time. It did not feel like a few sheets of paper. It felt like an unexplained past had been folded shut and placed against his ribs. A moment later, outside on the penthouse balcony, Casa stood before the railing. The lights of Paris trembled far below, and the night air at that height was thin and cold. He opened the flat pack on his back. A micro-glider, folded tight inside it, unfolded with a short, smooth sound and took shape in the dark. One brief electronic tone sounded over the comm. Mitchell's signal. Hermes spoke at once. "Now." Casa did not answer. He stepped onto the railing and threw himself into open air without hesitation. For one instant, the black silhouette dropped like a stone. Then it caught the wind and slid forward. The glider cut over the Paris nightscape and vanished toward the darkness above the Seine. At the edge of his vision, the lights of the Eiffel Tower rose sharp and clear against the black sky. Hermes spoke again. "Toward the river. Avoid the bright cluster on your left. Slip behind the black roofline." After a few adjustments in altitude, the glider separated completely from the city's light. Paris was still beautiful at night. The Seine flowed as if nothing had happened. The lights on the bridges did not tremble.