Lucas looked at the dungeon core that was completely black in colour and understood how the dungeon rewards the dungeon masters.
Whenever the adventurers enter a dungeon and expend their energy to kill the dungeon creatures, the dungeon gets some special energy to increase its grade and at the same time, a part of that energy would be converted into the specific items that the dungeon could produce before giving them to the dungeon master.
Also, the dungeons could absorb the bodies of the dead adventurers and it was the faster way to gain energy. Most of the dungeon master's prefer this method while showing the luxurious rewards just like the Mages guild's [Infernal dungeon].
Following the little fairy Freda's words, Lucas said, "Open the rewards."