I'm not sure if this is the right place to post this, so I apologise in advance if that is not the case.
In Vermilion city, there are two houses behind the library and after speaking to their inhabitants a Pokémon scream can be heard.
There's a one way track left of the houses that can only be accessed from the other side and yet I can't find another way in.
I tried searching online but found no mentions of this and even the map used on the PRO Wiki doesn't show the track...
Is it a bug? A quest that can only be done later on? Can anyone help me solve this mystery?
Sincerely,
The Mog.