Mystic Order of Veiled Prophets of the Enchanted Realm (MOVPER)

The Mystic Order of Veiled Prophets of the Enchanted Realm (MOVPER; also referred to as the Grotto) is an American fraternal organisation, open exclusively to Master Masons, that was formed in April 1890 at Hamilton, New York by members of Hamilton Lodge, No. 120, F.&&thinsp;A.M., as a successor to the earlier Fairchild Deviltry Committee (FDC). The ritual and symbolism of the order is focused around the story of Al Mokanna, the Veiled Prophet, also known as Hakem ben Haschem, and is claimed to derive from a Persian manuscript of some antiquity, this having been allegedly discovered in "one of the sacred temples" of Tehran, "the City of Mystery."

Mackey's History of Freemasonry relates that Thomas Moore's Lalla Rookh, an Oriental Romance (1817) was not the direct inspiration of the group's ritual, and was only discovered by members after the founding, though the poem was credited as being a beautiful telling of the story by the Supreme Council.