It was not a painting. It was a codex. A tiny, palm-sized booklet of sixteen vellum leaves, its calfskin cover stamped with a faded monogram: ☿—the alchemical sign for mercury. Seventeen booklets by Hieronymus Bosch were rumored to exist, sketches for his hellscapes. Sixteen were in museums. Number 17 was a ghost story told over post-dinner drinks.
She looked through the peephole. No one. When she turned back, the booklet lay open to page sixteen. The image was simple: a hand holding a lit match over a pile of old paper. Beneath it, in a script that looked like dried blood, were the words: “The seventeenth booklet is never opened. It is only burned.” bosch booklet 17
“That’s impossible,” Lena whispered. It was not a painting
She turned to page two. A ladder ascending into a cloud, and at the top, a tiny figure with a bespectacled face— her face. Lena’s pulse hammered. She flipped faster. Page three: a clock melting over a city skyline—not a Netherlandish town, but modern Lyon, with its basilica and TV tower. Page four: a woman in a lab coat, pouring a green liquid from a flask labeled XVII into a basin. The woman’s hair was the same shade of chestnut as Lena’s. Seventeen booklets by Hieronymus Bosch were rumored to
She slammed the booklet shut.
That night, Lena couldn’t resist. In her hotel room, she opened the booklet again under a reading lamp. The images had changed. Page five now showed a man with a suitcase standing at a crossroads. One path led to a burning museum. The other, to a door with the same ☿ monogram. She knew that crossroads. It was the intersection outside the château.
“Is it?” Armand smiled thinly. “Bosch painted the Garden of Earthly Delights as a warning. But Booklet 17… he painted it as a lock. And you, my dear, are the key.”