You are standing in front of a fireplace.  To the right of is a pool table.  You are going to see some wood stairs leading up.  Go towards the wood stairs and the pink wall.  Go up the steps.  And continue going up the steps.  And you are going to take the steps all the way to the top.  And to your left you will see an opening.  You are going to walk right into that opening and stand right in the doorway and you are done.