Earlier today, Theodore had actually teleported to Adeline's room but only to find out that she had some audience with her. He had visited her at the exact same time when the messenger of the Palace was making the announcement to Adeline.
Just like the Mystic Coven, Theodore had also felt the barrier of the three worlds merging. And because he was the Devil, he was able to pinpoint the location of where that had happened.
And while he was already near that area, he thought of visiting the place where the barrier was breached. Theodore instantly teleported to the forest where the guards were actively guarding a cave-like entrance.
"Hmm… so this is where the King keeps all his prisoners then." Theodore mumbled to himself and teleported inside the prison. He sensed the remains of dark aura from one of the prison cell and then headed near to that cell for closer inspection.