These mysterious stones fall from the sky and cause trouble to the inhabitants of Reveria. They hold the power to turn evil creatures even more eviland good ones into normally evil, but this can be reversed by destroying the stone itself. However, when Leilah, a spirit-girl, became bitten by one of the 'Shadow Monsters' (the name Flutter gave to monsters who turn even more evil), breaking the stone did not cure her. She was cured when Noelia created a potion with mushrooms and some Doom Stone Shards. It was the largest Doom Stone the player character and Yuelia had seen so far.