A supposedly "haunted" mansion

Opening the door you're a little shocked to find yourself standing in the middle of a dark mansion that looks to be deserted.  Turning around you glance through the doorway to see the room that you just stepped out of.  Smiling to yourself you let the door swing shut, knowing that you can now travel anywhere you want to go.  This knowledge is a great comfort although you'd still like to know how you got into this strange situation.  Shrugging your shoulders you turn back to the dust and cobweb filled room and start walking down a dimly lit hallway.  You are just about at the end of the hallway when you hear the sound of running footsteps coming your way.  You just barely have time to step behind a bookcase when a group of teenagers run by you followed by a large great dane.  As they disappear from sight you see a person dressed as a pirate run chasing them.    You wait until the sounds of footsteps fade away before stepping out into the cobweb covered hallway, a smile crossing your face as you casually follow after the group, your mind working on ways to split them up so that you can get the girls alone.

After a few seconds thought you turn and retrace your steps to the bookcase, your mind focusing on it as you feel the cartoon universe slowly shift around you.  Reaching out you pull one book forward, hearing the catch of the mechanism as the bookcase swings outwards revealing the secret passage behind it.  "Just what every old abandoned mansion needs," you chuckle to yourself as you step into the dark passageway, letting the bookcase swing shut behind you.  You creep along the narrow passage, stopping every once in a while to peer out of the eyeholes of the paintings that hang along the hallway.  Finally you see what you were hoping for, the teenagers have stopped running, setting up a convoluted and completely impractical trap for the pirate.  You watch as the tall lanky teenager and the dog reluctantly move out to lead the pirate towards the trap, leaving the other three waiting patiently.  You watch them carefully, trying to decide which girl you want first.