The cave of time
You continue a long distance until you come to the next tunnel. From there it is only a short distance until you reach the surface. An amazing sight meets your eyes.
As far as you can see, the land looks like a beautiful park, with soft, feathery grass and towering trees. Here and there are clusters of multicolored, dome-shaped buildings, connected by ramps, terraces and walkways. Some people dressed in simple khaki pants and shirts and tan sneakers walk up to you. They do not understand your language, nor you theirs. They look much like the people of your time except that they are unusually trim, muscular, and healthy looking, and they are a good deal smaller than your own people.
They take you inside a dome-shaped building and show you electronic equipment that looks like a computer. You notice a typewriter, so you sit at it and type a message.
The computer prints out a reply. It apparently has access to memory banks containing your language. You soon discover you are living in the year 3742.