Much to Bruce's surprise, Julius sent some survivors to help him. Still, given that they didn't like the idea of him working separately from the others, he ended up sending them back to the hotel. He wasn't there to babysit others. At that point in time, even Bruce noticed the sudden change in his behavior.
"I guess thinking about this whole situation made me madder than I thought," Bruce sighed. "Still, it would be foolish and depressing to slow down just to match the rhythm of others… I won't betray myself."
While Bruce was thinking about that, he noticed the atmosphere changing, and then… As Bruce pondered his next steps, contemplating the quests and rewards before him, he suddenly felt a slight tremor beneath his feet. His body instinctively tensed as the ground beneath him continued to shake, intensifying with each passing second. The low rumble grew into a deafening roar, filling the air around him.