the invasion of Iyden
When Kayn left Nod for Iyden years earlier, Lilith vowed to have him returned to her. She sought the aid of the fallen angels which lived on Mu, yet was told that due to the presence of Yahweh Brahma in Iyden, the fallen angels could not enter the garden-city. After conferring with their leader, Lucifer (who was fighting in the center of the universe), they decided not to aid Lilith, as an such overt move against Greater Men was inadvisable at the time. The fallen angels suggested she build ships to transport her children to the island, to form an army.
Thus Lilith convinced her children the people of Iyden had stolen their favorite brother, she employed them in constructing a navy, the first of its kind, of wrought iron and wood. After five years of experimentation and construction, the three ships (the Kaynan, the Abareth and the Imerthys) were loaded with Lilith’s monstrous offspring and they set off for Iyden.