It's been a really long time since I last read it. The only thing that I remember is that Theodore had gone to this meeting between dragons to fight against someone(?) By that point Theodore was already a 8th circle magician... don't know if it'll help... Thank you
The meeting with dragons was when MC entered Sloth and met Prometheus inside too. That being said, aren’t the links dead and thus you will need to find them some other way?