Jace shakeily made his way around the stairs to find that only the blockheads were left. All of the hellhounds in the room had run at him. He walked up to the first one that seemed to be discombobulated and swung the cannon at its head. It went flying easily.
The other blockheads seemed just as discombobulated. He understood a moment later as he realized that Jace could not hear anything. While his helmet systems were showing that the outside noise gate had been closed automatically. Because a sound too loud for normal humans to survive was generated.
It seems just firing that cannon in an enclosed space was too much for these things. He tossed aside the tri-barreled cannon and pulled out his knife. He quickly made short work of the remaining blockheads.
He then walked toward the doorway he came in through and found Parrot in a daze. "Parrot, are you alright?" He waved his hand in front of her. She nodded absentmindedly before shaking her head and completely waking up.