172165o5 May 2026

Inside the hatch, a staircase curled like a seashell into the earth. The air smelled of salt and old paper. The scrap warmed again in Mara’s palm and a soft click echoed down the stairwell. The light at the bottom flickered to life, and they found a room carved out of bedrock with shelves of small glass vials, stacks of notebooks, and a battered mechanical device resembling an orrery. Its armatures were engraved with star charts, each labeled with different sets of numbers and letters—172165o5 repeated, painted across the central gear.