The Temple of Ascension is where Higher Powers are made. This process, called Ascension, is overseen by whatever group is backing the making of a new Higher Power. Once this is work is done, the temple is left to the protection of a modron army. They only allow those of display great power to enter this monumental edifice. For hundreds of miles in every direction, this army keeps the peace, and sanctity of the temple. Sometimes they fail. On 27 Dreamer 984, the villainous Set raided the temple just as Jurmalon was being ascended. It is said that Set was taking revenge on the Elderaunt's new god, capturing their prized deity in reprisal for the great Khazarkar defeat, Set's most loyal worshipers, at the Battle of Satheon. Jurmalon, magically bound, was taken to Set's Black Chariot, never seen again.
In the Horgon Era, the Saints of Maen used their Torc of Maen Grirngrim along with the help of others, becoming Higher Powers. Their torcs, forged by a fel being of the Creation War, interfered with this Ascension. It made them immortal, made them vessels for divine power, but also turned them into undead-like things, one became a thing of dessicated flesh and bones, another of dark wisps, and one a creature of shadows.