Just a couple notes from the co-writer...
We are thoroughly enjoying this conjecture and theorizing. Keep it coming. Its' truly awesome to see. We love you guys for being so intrigued and inspired by our project.
To be technical? the Forgotten Chambers is beneath the cemetery. Behind the Cathedral. Yes, the proximity to the mansion looks to be relatively close, but the caverns beneath Lewd Town are far deeper under ground, since the whole landscape was elevated a little over a century ago... Certainly larger blasts would have caused concern IF the labs and mansion sublevels were located close to the Forgotten Chambers.
The map is a bit misleading, but it's a challenge to keep things legible and fit all these places inside a 1280x720 rectangle. If you look at the key location house sizes vs the buildings on either side, they are massively overproportioned so they stand out from the rest. Example: Pamela's house vs the apartment complex to the right of it. The mansion would technically be about a half-mile farther from the road than it looks like on the map.
In addition to this, while we encourage people to dig deeper into the lore we have created, we also don't want anyone to take things too seriously. Keep the theories and predictions coming, but try not to get upset if they remain theories and predictions without direct validation. It's all good fun and we appreciate the conjecture and love for the world of Lewd Town.
Reading it all is awesome.