Scientist Discovers Strange Things in an Iceberg, and is Astounded at What They Are

Prepare a camp

It wasn’t difficult to find his way back into the tunnel. Mark faces more resistance as he climbs upward, but he manages to do so. It will be dark when he returns to the surface. He must set up his tent as soon as possible or he will die from the cold. He prepares the next day’s plans while he is putting it to good use. He must now go to work.