The Moonstone is the place where cats used to go to communicate with StarClan in the old forest. To get to the Moonstone you had to cross through WindClan territory, go to Highstones, go into Mothermouth and follow the path to the Moonstone. To see StarClan all you had to do was press your nose to the Moonstone. This is used mostly by medicine cats every half-moon to share tongues with StarClan. Leaders also used the Moonstone to gain their nine lives. Apprentices went with their leaders once before they could become a warrior. They seemed to have lost this after they went to the lake. The Hightstones is really a disused mine. It is unknown if the Moonstone is still there after the twolegs destroyed the forest but it most likely is.