A few moments later, Cai Ying suddenly spoke in her low voice as she gestured toward the mysterious glyphs etched into the stone wall.
"Look, Third Miss! Check this out! Do you notice those ancient markings on the wall? They seem like some kind of symbols or something."
Tan Xiuying felt curious as she examined the ancient symbols. She leaned in closer and replied, "These symbols look like they have a story to tell. Let's continue further and see if we can find more clues about their meaning."
With their determination unwavering, Tan Xiuying and Cai Ying continued their exploration of the secret tunnel. As they ventured deeper into the unknown, Tan Xiuying took out parchment and a quill from her satchel. With each turn and passage they encountered, she meticulously sketched a map of the secret tunnel, marking significant details and landmarks along the way.