Finding these people isn't difficult; the Municipal Government has related records. Now that it's confirmed that "Ember Girl" is "Xia Xi Duolaiti," the gender and age of the victims in Ember Town are no longer important; everyone needs to be checked once.
There are quite a few bereaved families, but for Xia Xi Duolaiti's missing case, the District Government has already helped with a thorough check. Back then, no family members of victims were taken away or completely disappeared, so this person must have some relationship with the victims, but on the surface, no one would suspect them.
At the same time, they need enough "operating time," for instance, to track the movements of the District Government and Duolaiti family members, and to find or create a suitable hiding place. This place must not be detectable by props and instruments, and it must completely avoid the players' sight...
Apart from underground, Xu Huo can't think of a better place.
