Massive fraud

Exploration Stage: Burned-out Estate
From: Mr. Black
Description: I think I know what the hearth floor is trying to say. The house has always belonged to the fire keepers or their descendants. You can tell by the flame symbols. But for some reason the ownership started to change. When was that? Eli, do you have the paperwork for the house? Please bring them to me!
Completed: What an old certificate...this must have belonged to the first owners, the fire keepers. They were the only ones who could document the house with a hot pointed brush. With a flame...but there are traces of wax here. Not so old...