The Great Temple of Caerleon Medb (ギャリオン・メイズ大神殿) is a Lost Ground located at Θ Hidden Forbidden Sacrament. It is also called "the End of the World", and has the subtitle "A Thousand Nights".

(The World R:2 History: The Great Temple of Caerleon Medb's place in the mythology of The World is unknown.)

(Epitaph of the Twilight: "The End of Land" lies past the Keel Mountains. The heroes of the Epitaph must trek through it in their quest for the Twilight Dragon.)

Note: It is also where the Lost Weapons are for the Epitaph Users.

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