He already knew Zather so finding more information on her was not going to be hard.
However, her being involved with the landlady was a bit suspicious since the two didn't even look like the types that would ever cross paths with each other.
At the end of the day, Hecathe would certainly be naive if he were not to find this suspicious.
And so, Hecathe did the first thing that came to his mind which was to go to the guild and find out some answer for himself.
Who else could reveal information on Zather other than the woman herself?
Once he reached the guild, the first thing he did was look for Zather but the man was a bit surprised to know that Zather had a different name in this guild. She was actually called Azazel here and nobody really knew her real name.