Need Help? Read the following:

If you need help with getting to the house, just click the button closest to the orange banner in the bedrock room. If you don't know where the bedrock room is, its where the flat side is with the 4 bedrock on the bottom. Mine all of the dirt on that flat side and you will get into the hallway. Unfortanetly, unless you cheat and go onto creative, there is no going back when you go into the second hall of the bedrock room just for extra security. After going there walk through the blue banner and click the button closest to the orange banner like I said in the beginning. Now you should be at a 3x3 granite floor with a chest in the middle. If you did not yet notice, the diamond pickaxes and in the shape of an arrow facing right. If you mine all of the granite blocks to the right you should find that the secret house is 1. No longer Secret... :P, and 2. Underneath the polished granite. While you go down the ladder, just in case you loose the polished granite there is some in a chest. Once you are in the house you just press the button to go to that location in the secret house. To get back to access of all the rooms just click a button in the room. Usually, that button will bring you back.