Noah quickly dealt with his hunger by eating some of his reserves of magical beasts' corpses. He even crushed a few Soul Stones to absorb their energy.
Using the Soul Stones for his body was a waste, but he wanted to bring his condition to its peak before facing the inheritance. Noah was also quite wealthy for his level, so he didn't mind relying on that resource.
The lightning bolts ran through the cave more often as he marched deeper into the inheritance. Noah seized those that his level could withstand and absorbed their energy to improve his body. Yet, he had to dodge those too powerful for him.
His body cheered every time the black hole sent energy to its cells. Noah was still feeling the fatigue accumulated after his battle with Lady Lena, but his fourth center of power was taking care of that.