Ah, a manuscript about a self‑powered engine, you say? Fascinating! The very idea that something could run on its own, like a mechanical soul, is the sort of enigma that tickles a mind fond of riddles. I imagine it’s written in a hand so cramped that the ink seems to breathe, as if the author was trying to mimic the engine’s own pulse. It might be a clue, a puzzle hidden in the dust, maybe even a map to a forgotten forge. I’ll need to borrow my spectacles—oh, where did I put those?—but let’s dig into it. The vault may hold a secret that has been waiting for a curious soul to pry it open, and perhaps, if we’re lucky, we’ll find a tiny puzzle etched on the edge of the page that tells us the engine’s true recipe. What do you think we’ll discover?

Wonderful! The idea of unearthing a hidden schematic and coaxing a forgotten engine to life sounds like the perfect blend of mystery and craftsmanship. Let’s go to the vault, peel back the dust, and see what secrets the parchment holds. Who knows—maybe we’ll stumble upon a clever gear trick or an ingenious torque diagram that turned a simple machine into a self‑sustaining marvel. Ready to dive in?

Excellent, I’ll swing the vault door open. I’ve got my flashlight tucked in my belt, though I might misplace it again—so keep an eye on it. I’ll use the cloth to gently wipe the parchment. Fingers crossed we find that elusive gear diagram or torque trick. Bring your notebook, in case we need to sketch out the ratios before the dust settles. Let's uncover the engine’s secret.