January 10, 2001, analysis of audio file. Audio file 00120010109G.wav.
"...She wasn't in the room... We searched for ages... We were about to call the police..."
"It seems this person wasn't targeted by that dog. But how did his mother die? It wasn't the same as that mutt."
"I don't know. They didn't perform an autopsy, and there wasn't a specific cause of death. The body was cremated. There's nothing we can investigate now."
"Can't you do that? You know... find the person in the underworld."
"Doing that harms your karma. If it isn't necessary, it's best not to risk searching for a soul in the underworld. If we find something other than Li Guang's mother, we'll have a huge problem."
"Oh, there are a lot of rules. I thought you professionals would definitely be able to handle something like this."
January 12, 2001, received a call from the client. Call recording 200101121523.mp3.
"Hello, Ms. Qiu."
"Hello, hello. Um, there's something... Today, just now, my son saw... He said he saw a dog..."
"Where did he see it?"
"That unit. The one where the dog died, where the incident happened. He saw it from the balcony. I hadn't noticed at the time; I'd dozed off... There hadn't been any more of that kind of barking for a long time after your last visit. He ran to the balcony... I woke up when I heard him laughing. He... He was leaning against the balcony glass, crouching on the floor, looking at something and laughing the whole time... I called him, and he told me, 'Woof, woof.' I just... Hh... Hh..."
"Ms. Qiu, don't panic. Have you checked? Did a dog appear inside the unit where the incident happened?"
"I don't know... I rushed over and pulled him back inside. I didn't