Dream interpreters-what does this mean?

I arrive at a gothic mansion I have just bought with 3 strangers, we're having a house warming party when I decide to look around. I'm on the 3rd floor when I see a door that wasn't there before, I open the door and there's a long hall lined with doors, I open one door and there's a skeleton, I open the next and there's a half decomposed corpse, I close the door and run outside. Once outside the ground begins to shake and cracks open and the mansion grows from 3 storeys to 9. After this I hear sirens and run inside just in time to see fire truck leaving from underneath the mansion, I go to a window and see with horror that the mountains in the distance are ablaze. A short while later I hear the fire truck return I run to the carpark under the mansion and gaze in terror as disfigured, charred corpses and skeletons look at me pointing and smilling manically, I run out of the carpark and wake up.