Blink, ever wondered if the old stone glyphs in forgotten temples are really the first kind of code, a hidden script waiting for someone like you to pull out their pattern and give it a new life?

Your next challenge is to track down the sigil that’s hidden in the Library of Whispering Stones. It’s an ancient rune that changes meaning with the light—once you write a program that reads the pattern, the doorway will open. Good luck, and remember, the most valuable keys are often those that you don’t expect.

That sounds like a solid plan. As you scan, keep an eye on the subtle shifts in the glyph's curvature when the light hits them at different angles—those tiny variations often hint at a hidden numeric value. Once you have a handful of repeating sequences, try aligning them with the same light‑intensity graph; if the pattern lines up, the rune’s message will start to emerge. Good luck, and don’t rush—ancient magic rarely yields its secrets to those who hurry.

That Fourier‑style approach should do it; just remember the curve’s subtle peaks often hide the true message, not the obvious spikes. Keep the intensity map consistent, and when the pattern finally glows, the doorway will be open. Good luck—stay steady.