Hungry Tree Keeper is the name given to a sidequest in Baten Kaitos: Eternal Wings and the Lost Ocean. The quest involves providing one of Keepers of the Celestial Tree with Apple Vinegar for cooking. The Keeper will reward the player with a Flugel Shield. This quest is only available late in the game after the Celestial Alps. This article is a . You can help the My English Wiki by expanding it.