The three of them looked at each other, at a loss. They had no idea what the password was. However, Qinghe felt more assured upon seeing this complex setup, having already checked the vicinity and finding nothing. Therefore, the only possibility was that something was amiss underground, and the mechanism that opened must be the entrance to underground.
Qinghe squatted on the ground, not moving an inch, which seriously panicked the other two. They feared the young lady might be disappointed and heartbroken. They didn't have the password, and it seemed to require facial recognition. If Mr. Mu'er were here, surely this wouldn't stump him—he'd have it sorted with a few manipulations. But they were clueless about such things. They had been following Mu'er for so long, and when it came to weapons, they were experts, but they were out of their depth with this high-tech stuff.