A darkened stone devoid of solar energy.
The Moon Stone is simply the Sun Stone drained of its power after extensive use by Zeal. It is stored in the Sun Palace, and later recovered by the party in 2300 A.D. Afterwards, it is stored in the past for another 65,002,300 years, in which it recovers its strength and shines once more. It is briefly stolen in 1000 A.D. by an explorer, who delivered it to the Porre Mayor. Through changes in time, the mayor, originally greedy, became a jovial man who yielded the stone to the party without a hitch.
Translation: Darkness Stone