It is thought that the Oni is inside the mansion because he was a former resident of Ao Oni.
Yes
There are various Pokémon available to capture inside the mansion in FireRed version. For example, there is Koffing and Grimer.
you cant go inside
You can't get inside.
Written in the stars - tinnie tempa
The Discovery of a World Inside the Moone was created in 1999-05.
the one inside your head!
its inside the mansion
Yes
Near the celadon mansion, though you get the tea from the lady inside the mansion.
Yes, the Brown Mansion in Coffeyville, Kansas is very much haunted. I live in Coffeyville, Kansas and have went on a tour of the mansion and have personally experienced spiritual activity inside the mansion.