Two contradictory accounts of Imrryr’s special relationship with Arioch are given in the Elric series. The first appears in The Sailor on the Seas of Fate. In this version, the Melnibonéans came from R'lin K'ren A'a (“Where the High Ones Meet”), a city on an island in the jungle-covered western continent. The people of R'lin K'ren A'a were peaceful by nature, but the Lords of the Higher Worlds wanted the location for a meeting. In exchange for giving up the city, the royal family received Arioch’s patronage. Some of the refugees went as far as Sorcerer’s Isle; others went on to Melniboné, where the dragons were already living. Imrryr itself was built two centuries after the settling of the island.
A different version appears in The Revenge of the Rose. Originally the Melnibonéans were allied to the Balance and lived in two cities, Imrryr and H'hui'shan. The two cities disagreed whether to shift over to Chaos and accept the patronage of Arioch. In a civil war three days in length, Melniboné was left in ruins, but the inhabitants of H'hui'shan, the supporters of the Balance, were all killed. This version is told in the Dead Gods' Book and vouched for by the ghost of Sadric, Elric’s father, who claims that the dead are able to discern the truth. In both versions, the patronage of Chaos inevitably twists the Melnibonéans over time, making them cruel and aggressive instead of peaceful.