Annan narrowed his eyes slightly.
Everything was connected now.
If Annan had not guessed wrong, that cursed mirror of Claus's was enchanted by Doctor Gerald.
The real murderer who killed Tan Juan Geraint was his guard captain, Claus;
and in fact, the guard captain was a man of the third prince.
Also siding with the third prince was the eldest son of the Geraint family... Tan Juan's elder brother. The Curse Binding of old Wizard Benjamin was leaked to Claus by him.
In order to ensure victory over the silver-ranked great Wizard Benjamin before docking, Claus, despite knowing Benjamin's Curse Binding, still requested the cursed mirror and used the ritual "Tongue in the Mirror" he had learned of before while on board.
This ritual required a cursed mirror full of curses, and it must be smaller than Claus's head... such a mirror would inevitably be very hard to find.