The Realm of Summoners

Eustace squinted his eyes as he tried recalling any information about the Blackheart Stone… However, the closest alchemy materials he could remember were the Shadowheart Stone, Blackbrain Gem, and Petrified Heart. He couldn't recall any Blackheart Stone at all.

Nevertheless, he remained silent as he allowed the old Appraiser to continue.

Analyzing the stone's properties, the Appraiser continued.

"The Blackheart Stone possesses an uncanny ability to amplify dark magic and tap into the dark desires of their target. If used by Alchemist, it holds the potential to strengthen spells of concealment and manipulation, making it highly sought after by those involved in espionage or stealthy endeavors. This item is something the Vessels of the Dark Arts Faction would want. I would estimate its initial value to be 20,000 zen… However, if we get the faction involved, its price could easily reach 80,000 zen or more."