The Phantom River Stone (洮河緑石 Tōgaryokuseki) is a mysterious greenish stone that was used to craft the Dragon Mirror and Phoenix Mirror. Its Japanese name literally means "Green stone of river Tao", however in the game it's said that this rare substance may be found only near Bailu Village. This stone seems to have some mystical property. Ryo finds a piece such ore in a shop in Niaowu. Upon inspection, he learns that the Red Snakes had asked to the shop owner about the origin of the stone and the stonemasons who could sculpt it. This probably led them to send Yanlang and his thugs to Bailu to kidnap Yunshen Yuan.