"Of course, this is just a guess. We'll have to walk through and see."
The two continued forward along the central passage. However, they hadn't gone far before running into trouble. A huge stone door appeared ahead of them, covered from top to bottom in intricate runes. The runes emitted a intense radiance, forming a powerful barrier that blocked their path.
Lin Yu carefully studied the runes on the stone door, attempting to find a way to break through them. He discovered that these runes formed a complex formation; only by activating the runes in a specific sequence could the stone door be opened.
Chapter 81