You are trying to find the mysterious owner of a steam vehicle on an alternate world!
Long Description:
You work for the United Nations InterDimensional Agency, UNIDA. You are part of the InterDimensional Exploration Team 2. You are on a survey of portals to other worlds and other whens. Then you find that a portal that was supposed to be locked down is open! When you pass through the portal you find a steam powered vehicle inside a cavern! You have no idea where it came from, but you know for certain that it didn't come from the world you found it on. You have to find out what's happening and where the owners of the strange vehicle went to.