At first glance, it is similar to coal because it is also black in color. However, when observed, it turned out to have a shape like a wrist bone.
It also reflected the light of David's lightning.
"This kind of thing is often collected by Spiritual Beings. It is useful in purifying the blood of the Deities as there is still very strong spiritual power in it." Mery explained to David.
After hearing that, David picked up the object.
As it turned out, it was indeed a bone. However, it was very heavy. David had to use the spiritual power in his hands just to lift the bone.
"Do you want to keep it?" he asked Mery as he pointed the bone at her. He thought carrying it would only burden her.
Apparently, Mery shook her head and replied, "just leave it here. It won't give us any benefit, it's better to let it go with the mined coal."
Mery obviously had the same thoughts as David.