The walls on both sides of the passage were carved with murals of ancient Pokémon.
Xia You had seen some of them before, while others were unfamiliar to him.
After taking a few haphazard photos of the murals and statues, Xia You and May continued forward. When they passed several obvious traps, neither of them touched the mechanisms, carefully going around them instead.
"Xia You, what do you think this place is?" As she spoke, May looked around curiously. "There are even traps here. Could it be a tomb?"
"Something like that," Xia You said. "Underground ruins like these are usually either tombs or hiding places. There isn't much difference. If we want to know exactly what this place was for, we'll have to find some distinctive features or uncover the secrets hidden here."
Perhaps they had chosen the right direction. After another hundred or so steps, a sweeping turn, an underground crossroads, and several dozen more meters, they finally arrived at a strange door with several recesses in it.
Standing before the door, May frowned slightly. "This door looks mysterious and really unusual. Could the room behind it be the one hiding secrets you mentioned?"
"That's easy enough. We'll know once we go inside and have a look."
In light of the traps they had just seen, Xia You did not approach the door. Instead, he turned and signaled to Gengar.
This time, Gengar did not grumble. Perhaps equally interested in what lay beyond the door, he readily slipped into the wall and disappeared from the passage.
Xia You and May waited quietly outside the door. Before long, just a dozen or so seconds later, Gengar emerged again.
"This is a pivoting door," Gengar told them with a grin. "Good thing you didn't rush over and touch it. There's