The Stone of Thirst is a magical object from Shadowgate 64: Trials of the Four Towers. The main character, Del Cottonwood, first receives this stone from Kaitlin's grandfather after he rescues Kaitlin. The Stone of Thirst can only be activated after stating the phrase, "Nomain Ra!". Del can only learn this phrase from a ghost next to the cathedral after pouring Dragon Tears on his grave to cleanse it. The only time this item is used is when Del tosses it into a pool of water. The stone will suck up the water and vanish. After the water is gone, Del will have access to the waterway controls.