"It's a real mystery. My ancestor spared no words describing the beauty and riches of the cave, even described

"It's a real mystery. My ancestor spared no words describing the beauty and riches of the cave, even described how to find it, but he didn't explain why the army had left such treasure behind. Maybe that part of the diary was lost? Well, even more interesting, then! Maybe we'll get to shed some light on this ancient mystery!"