In the dark tunnels of the cave dunegeon, Erden rode on moonclaw as he traversed the rocky tunnels. Although the cave was dark, it was only relatively so compared to the chambers with artificial suns. Every once in a while, Adam could see a few blue ether crystals lighting up the tunnel.
These crystals were the product of every dungeon and, more or less, the desired items of most of the invaders who enter a dungeon. But to Erden, they are no different than the dirt building up on his body. Same as for Adam, as he didn't have the soul to use these magical crystals. Maybe if he were to discover some sort of recipe to use these crystals, they could be more useful.
But since he does not have any use for them for the time being, they will have to stay as they are.
In the end, light at the end of the tunnel could finally be seen. Literally. So going ahead, he was greeted by the beautiful greenery, with multiple suns lighting up the large chamber.