The voice came from a distance, yet everyone heard it loud and clear.
"Who is it?!" Felicia was the first one to respond. She should definitely, for she already planned to take the Mystery item away. Anyone here to interfere was her enemy.
However, the voice sounded like it came from someone from Dark Castle, and what she said seemed "legit" enough.
Angor's alchemy attempt was unique and unrepeatable because it combined coincidental factors including all the soul energy collected from Black Forest, Scorched Earth, and the mass graveyard.
He used the souls gathered by Dark Castle over the last thousand years as a resource to challenge the title of a master alchemist, so the strange voice was right to accuse him of stealing.
It wasn't really a serious mistake in the wizarding world, but it was considered an offense nevertheless. Angor already thought about this while making the weapon, and he wouldn't protest now.