"Since you can't think of it, it seems that the door was just a slip of the world's will," Frost said before laughing to himself.
Angel understood that Frost found humor in little things, but he failed to see the humor in that remark. He could only manage a cursory twitch of his lips.
After his laughter, Frost did not delve further into the conversation but instead changed the subject, "Speaking of which, you are now an Official Wizard, and the path to True Knowledge is not far ahead. Are you really not considering going to the Origin World?"
Angel's answer was still a negative. He had thought about it, but definitely not now.
"Alright," Frost said, not insisting, "We had an unfinished conversation about the Mysterious Object last time. Shall we continue now?"
Angel was naturally willing, as Frost had only explained the controllable and uncontrollable aspects of the Mysterious Object previously, without touching on the distribution of its energy levels.