After her conversation with Delegate Ferrer, Thea needs advice from someone with actual proven political experience.  And what better proof of that is there than surviving both the Thrunes and the Unicorn while a Lawful Neutral cleric of an infernal power?  He gave her good advice before.  She walks back to the monastery while she works on her ideas a bit, than goes directly to Theopho's residence once she has a plan.  He has an obvious potential interest in one of her ideas, but the other she should feel him out first.  She doesn't have Dia in tow, Dia is busy trying to watch as many trials as she can to feel out the government response to recent events.

She knocks on the the door.  After already knocking, she notices he has a mail slot... she could just leave a letter... but then she couldn't feel him out first then.  She can do this.