In Hogwarts, there is a room. At the very back of the room, there is a window. Depending on the amount of steps you take towards that window, are the amount of years you go ahead. The steps you take backwards are the years you go back. When you have gone the amount of steps, you have not gotten any closer to the window. You turn around, and go out the door, and you will be in Hogwarts, however many years ahead. Voldemort wants to get into Hogwarts so he can get to this room. He wants to go ahead in time so he can kill the future Harry. He knows the present Harry is too well protected. The O