Run: 2026-09-23-01M37HMZBNDNBAWGJ4NKS1Q0NR

At midnight, the grandfather clock stopped precisely when someone screamed behind the locked observatory door at Blackthorn House that night. Detective Mara Voss reached the landing first, her candle shivering as a thin ribbon of blood crossed the threshold silently. The key hung from its hook beside the door, untouched, while the only window faced a sheer drop into darkness. Inside, Lord Blackthorn lay beneath the telescope, his throat cut, one hand clenched around a scrap of embroidered blue silk. His daughter identified the fabric immediately, then swore she had burned her blue gown three winters earlier without telling anyone. From somewhere within the walls came three deliberate knocks, though every servant insisted the passage had been sealed for decades. Mara raised her candle toward the bricks and saw fresh mortar packed around one stone marked with a painted cross.