Board Thread:Lore Discussion/@comment-72.77.73.35-20140408131341/@comment-174.6.51.17-20140428222727

The Daedra can do things that the Aedra cannot reverse. Remember how Molag Bal created the race of undying vampires specifically to spite Arkay, the God of Death. In the book Opusculus Lamae Bal, it states that after Molag Bal did this, "And so was the scourge of undeath wrought upon Tamriel, cruelly mocking Arkay’s rhythm of life and death through all the coming eras of the et'Ada, and for all his sadness, Arkay knew this could not be undone."