According to Ake "In the days before the Tuatha de Danaan, Emerald Knights fought against the horrors of the night. They destroyed cthonic beings. Before the golden shining spires of Hy-Brasyl, in Aosda, the Emerald Knights fought for dear survival. Creatures that stalked the land were unintelligible. It was madness to consider them, it was death to meet one of them. The Emerald Knights were the brave souls that donned the Iplet Mail. Each fought bravely. Each died to the horrors of Aosda. Only such a brave soul can craft Iplet Mail."