Zombie Jake's Ring is a quest item in Divinity II: Flames of Vengeance. Defeating Zombie Jake at the Eerie Undercroft under Madame Eve's on Lanilor Lane causes a small chest to appear on the altar in the center of the room containing the ring. It is needed for Clue II of To Find a Wizard.
Examining the ring reveals: This ring, dented and faded with the aeons, carries an engraved message: "Gold is what the Violet Blast craves most" - a clue concerning the orbs found in Champion Academy.
Behrlihn explains that ring was stolen from Thelyron Hashnitor, a Commander of the Council during the Wizard Wars.