From potimea, there are five teleporters.  Each one only allows 18 people.  Each one leads to a room with a door.  Until now, nobody has made it past any of these doors except by exploiting.  Nobody has ever opened one of the doors.  Until now:

There's much more to this story, but relating it will give away some of what happens in Plane of Time, and that's not something I want people to see accidentally.  If you want to read the rest of the story, and potentially spoil some of the fun in exploring Plane of Time yourself someday...click here.