Creepy Mansion

As you get closer to the mansion.. You find it oddly familiar, but you can't figure out why.. You walk to the door which opens slowly as you approach it.. As creepy as it is, there are not many other places to go, and thus you enter the mansion. The lobby seems rather small, a few tables and chairs some teapots ontop of the tables some rugs and more oddly coloured furniture here and there. Thankfully all the lights were on in the building. You can see 3 doors from the entrance, one is labelled "The Hall of Doors," another "The Hall of Paintings," and the last one simply labelled as "Do Not Enter." Something else was able to catch your ear though, as you could hear it from where you were standing, it wasn't very loud but you could make out the faint sound of a music box playing in the distance.


What do you do now?