The story so far: It's 1902. We think there's an alien race hiding somewhere on, or underneath, the Earth. We have to find them before they kill us all.

There are legends of strange lights and monstrous creatures at the north pole. This is the closest we can get. Our ship, "The Polar King", has powerful guns for smashing icebergs. But the guns wouldn't make a dent in those mountains of ice.

Should we anchor the ship and set off on foot? But how would a dog sled cross those mountains? Or should we stop for a day? Or do something else?