Stuttgart held a gray, metallic quiet the morning they began. Markus had spread documents across his kitchen table—letters of introduction, sealed requests for access, annotated maps of the Rhine. None of it felt like evidence. It felt like obligations waiting to be signed, as if the fortress had already begun to dictate terms from a distance.

        “Drachenfels won’t let us walk in as observers,” Catrina said, setting down a stack of books wrapped in twine.

        “They’ll expect us to understand their rules before we even cross the threshold.”

    She unwrapped the volumes one by one: medieval contract law, substitution ciphers, a monograph on silence as legal instrument. The last book she placed gently, as though the parchment itself might bruise under careless hands.

    Lukas stood by the window, watching the winter light flatten against the glass. He didn’t speak, but Markus could feel the tension in him—an instinctive sense that this inquiry wasn’t about testimony or inheritance anymore. It was about power written into the bones of a family, and the cost of reading what was never meant to be read.

    The train north carried them through river valleys and industrial outskirts. Conversation came in fragments, drifting between them like the landscape outside the windows, each thought half‑formed and heavy with implication.

        “These signatures recur every century,” Markus murmured, tracing a line with his thumb “Same hand. Same pressure. Same flourish.”

        “Then it’s not handwriting,” Catrina replied. “It’s a cipher disguised as one.”

    Lukas watched the passengers instead of the papers. A conductor paused too long at their compartment door, eyes flicking to the folders in Markus’s lap before he moved on. It wasn’t curiosity. It was recognition—quiet, practiced, and unsettling.

    By dusk they reached the village below the fortress. The innkeeper handed them keys without meeting their eyes, his voice low and tight as he set them on the counter, as if the words themselves might carry consequence.

        “Best not to ask too many questions up there,” he muttered.

    Behind him hung a framed parchment—edges cracked, ink browned with age. Catrina leaned in, breath catching as she studied the signature at the bottom, her finger hovering just above the glass.

        “Markus… the signature. It’s the same as the one from 1784.” ...

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