Source: Lost Treasures, pg(s). 62
Bagrilon was a pre-eminent cyclops astrologer in the lost kingdom of Ghol-Gan. He crafted three greenish tablets, now known as the Xanthuun Tablets, on which he recorded all his extensive knowledge of the sun, the moon but also the dangerous enigmas of the dark spaces between the stars. When Bagrilon slipped into insanity, a nefarious cult known as the Void Watchers stole the tablets. Years later, Bagrilon's tablets were claimed by the great cyclops patriarch Ammelon I and stored in his vaults in the temple-city of Xanthuun.