Proposal

" As for the method to seal the god's, I know everything about it since I'm the one who perfected it! " Said Arandale as he boasted about his achievements. 

The clone who was silently listening to Arandale's story up to this point understood a lot about this man's character as he both sympathised and disapproved of his choices. 

What he made from Arandale's story was that without the protection of the codex which made this hidden city a safe haven for the abyssal mages, they staged a walkout and decided to move to other hidden safe havens to experiment leaving zogaroth and his disciples to their own devices.