The current situation seems somewhat different from Annan's initial judgment.
Annan could tell that what he was saying was sincere, not an act.
The Tower Master named Julius is indeed a very responsible person.
He does not seek greater power and prefers to give up power to maintain reason, with the purpose of improving his work.
He practices the way of mediation, using himself as an example and guiding those who follow in his footsteps.
...Although this is not a path that needs much guidance.
Such an excellent Wizard... a duty-bound clan leader and Tower Master, would he really become an accomplice with Ingrid?
To avoid unnecessary misunderstandings.
Annan does not intend to be secretive, deducing based on the other party's behavior pattern and the scarce information revealed—many tragedies happen under the situation where "one party does not speak clearly, and the other party does not seek clarification."
It is well known that riddlers should be locked up in Arkham.