Inside the Nexus of Time and Space
The Archangel and Armaros were in the Nexus investigating the disappearance of Adramellech. The Grand Angel had given Archangel a secret way of gaining access to the Nexus with both body and consciousness, so both he and Armaros were whole in the Forbidden Realm. They went everywhere in the Nexus looking for clues, for anything that could help them understand what had happened.
While they were there in the Nexus, they were completely unaware of what transpired in the Arkana or anywhere else for that matter. They had no communication with Uranos either.
There was no sign of anyone else there. They needed to decide what they were going to do.
Archangel: I cannot sense anything out of place in here.
Armaros: Neither can I… However…
Archangel: Have your senses picked up something?