Deurges is an eternal specter of death. He was seen before the deaths of all of Angela's mortal souls before they died.
When Cogliostro ran into him in Rat City he became horrified to see him walking free. Deurges easily beat him and told him he was no longer his jailor. He was then teleported to Limbo with Angela where he released the ex-angel Lilith. While the two were distracted in battle, he attempted to take her Elysian-Lock which contained the time of all Angels. Angela interceded and smashed it to undo time and save the universe from the singularity.
After the future-apocalypse, Deurges confronted Daniel Llanso just after defeating the Anti-Pope. Daniel offered Deurges the one thing he felt Deurges feared most: forgiveness.