When I played EQ back in the day wizards (masters of teleportation) had a nice little spell called Abscond, which basically evacuated your entire group or a selected target to the zone entrance without their conscent. It was a last resort and sometimes the group would give you high fives for saving their arses or other times they would be ticked off not realizing the group was about to wipe. Anyway to make a long story short I've run into situations where I want to remove and NPC from the area but not kill them. Just teleport them to a pocket plane or stasis somewhere for a time so I could go about my business and leave. When the spell wore off they would be returned to their original location with no memory of what had happened. If I remember Baldur's Gate had something similar called Imprison, which placed the target in a dimensional cage about 300 feet down into the ground but in this case it was perminent.