Transporters

[VernJensen]

Jacob,

As for representing it in the mansion builder, it would behave

like

a transporter, where the designer indicates a room for you to teleport to, and you just bury this room off to the side somewhere. (I'd vote for above or below the main body of your mansion.) Then it's up to the mansion designer to make sure it behaves not like a teleporter, but instead like a door. i.e. you don't move about randomly, but it's like a

room behind the room

The game could

enforce

this somewhat by ensuring that on the return trip, you go back where you came from. (If I don't enforce this, I know designers will abuse it!!)