He had a vast intelligence network in Elzeira already. He was certain that the Royal Family wasn't going to enter this world so soon. This world wasn't suitable for them yet.
In fact, the Royal Family was still waiting and preparing for the war. According to his estimate, the invasion should've begun after a year at the earliest and maybe even two years later.
Due to the conflict in the city of Ember which was the weapon's hub for the Royal Family, and the recent chaos of the Royal City, it didn't make sense for them to reach out their hands so early.
"When did this happen?" he asked, wondering if it was after his recent actions in the Royal City. Was the emperor really so furious that he started the invasion early?
He had no way to find out since he directly came here after escaping from the Royal City.