Rimhorax is from a probability where Entalins evolved in a different manner then they did on Entalis Prime, which is why he does not appear human. Davernact was looking for a realm in which the hyperwave capabilities of the Entalins were more extensive than the current Entalins. His success brought him Rimhorax whom Daveract brought thorugh as a child and raised as his own son. He quickly learned the arts of hyperwave manipulation and all Davernact could teach him. In time he advanced on much of Davernacts work, and assisted Davernact in finding a way to escape the great betrayal brought about by the temporal cascade unleashed by the Gritachian Lords.