Throughout his life, Erasmus II was sickly and frail. His father Cassius I feared for his life, and eventually advised the boy not to take the burden of kingship upon his shoulders.
Not long after reaching puberty, Erasmus began exhibiting more severe symptoms. His features, once considered handsome, grew irregular and deformed. Bony contusions began to grow on his back and head. His skin became leathery and his gums receded, making his teeth appear sharper. The effect made him appear monstrous, and he shut himself away.
Before the strange disease deformed him, Erasmus had married Lady Felicity Morris and had a son, Elric. Felicity was appalled by her husband's appearance and would often refuse even to look upon him.
When Cassius died, Erasmus honored his wishes and declined the crown, citing his poor health; the succession then went to his nephew, John Flynn.
After he renounced the throne, Felicity took Elric and went to live with her family in Io. Erasmus threatened to raise an army and tear the city apart to get his son back. King John Flynn intervened, ordering Felicity to return to her husband. She committed suicide via poison, and attempted to kill Elric as well, but he was saved by his nurse, who forced him to vomit up the poison.
Elric was returned to his father, and they lived in a castle in Tyre for the next several years. Erasmus died shortly before the king likewise perished.