He was just puzzled, why would such a Crystal Core appear inside a Skeleton Monster's body?
Previously, he was curious as to why, apart from Summer Shepherd City, such crystals couldn't be found anywhere else.
Now it seemed he understood, was this something unique to the Underworld?
However, why did it appear on the corpse of a Weeping Angel?
Leonard Churchill took the Crystal Core tossed by Rosin and examined it, its purity was much lower than the one he held, but it was confirmed to be the same thing.
Speaking of which, he said: "I guess… this might be a Crystal Core from the Underworld. This Dark Element isn't energy from the Living Creatures Plane..."
Upon hearing this, Bonnie blinked, curiously asking: "What's the use of this Crystal Core?"
"I don't know."
Leonard Churchill truly didn't know.
Apart from using it himself for absorption, he really didn't know what else the Crystal Core could be used for.