Reborn from ash

Adam journeyed through the land. There wasn't any living thing. The entire land was barren with no visible landmarks. This was a flat land with nothing as structures. But one thing was visible. There was ashen fog covering a black mountain far away from Adam's position. And on that same area, a scarlet star twinkled.

That was the only thing which told Adam where to go, and that place was there. He continues until he reaches the foot of the black mountain. Surprisingly, there was staircases leading to the top.

One thing remarkable about the staircases was their height. It was made in a way that they were large enough for giant beings to climb also. But why?