Arthur was standing in front of the walls he created last time before he departed from Astria. They were still standing tall with poisonous vines clustered on them, the vines added another layer of defense to these tall walls.
He gazed at the shutdown gate and the creature snoring near it, with a red skin and a longhorn erecting from its forehead and some kind of a large metal armor wrapping around its chest and abdomen.
It was none other than the minotaur he captured a long time ago and assigned it as a guard for his sect. The dungeon's boss became quite strong, reaching the peak of the Spirit Realm.
Normally, it's impossible for dungeon bosses to grow by themselves, especially in such a short amount of time, so Arthur guessed that Jackob or Anastassia helped the minotaur.