How to execute a perfectly done seance?

Oh, that's easy. There's a hidden door at the top of the Tower Of London. Walk through and there will be a small candle to your right. Turn on the light to the right of it. Then blow out the candle and remove the candle from the candle holder. On the bottom of the candle holder will be a ten digit code. You will find a number pad at the opposite wall above the small bookshelf. Punch in the code and press #. A slip of paper will come out with binary info regarding the time travel. Go to the wall opposite the door and look for a little opening in the wall. Slide the slip of paper through the wall. After about half a minute, the wall will start to open around the center. The opening will be total darkness. Just jump into the darkness, and continue to fall until you land on the ground of the earth. Now you must walk half a mile to get to your destination.