Ygerna's voice always in your head telling you to visit the temple of Maxos every time you complete a quest in Broken Valley. Then throughout a lot of the game, you still hear her voice. Then when you finally get rid of her, the demon man gets into your head:
DK: Finally. Free of that witch. Finally, peace at-
Demon Man: Hello Dragon Knight. My name is the demon man, listen to my demonic and well acted voice, you have to free me.
DK: Oh by the Divine!!! Will I ever have any peace?!
Demon Man: No! Now complete my quests.
DK: Very well...
Granted. Further into Ego, Ygerna's voice died down but during Broken Valley, you kinda felt compelled to visit the temple considering Ygerna was always telling you to do so. Just to make her angry - I finished every quest in Broken Valley and defeated all the enemies (in the reachable parts) in Orobas Fjords before going to the temple.
