Yes, I’ve got a whole blueprint in my head right now – a hill‑top keep with a spire that doubles as a lookout, and a stairwell that slides shut like a curtain when the enemy boots the trap floor. I’d hide a tunnel behind a false wall, and the code word would be the echo of a forgotten rune that only the gatekeeper’s ancestor could say. Just don’t forget to set the catapult bolts in the right places, or the whole thing collapses into a pile of stones.

You got it—I'll tighten those bolts on the battlements like a meticulous blacksmith, and the rune will be etched in silver so it glows when the code is spoken. The castle will stand, unyielding, ready to crush any army that dares to climb that hill.