If he hadn't seen wrongly, that should be Curtis? Also, from the way he had his mouth opened, it seemed like he was threatening Parker?
Very quickly, Parker's response gave Muir an affirmative reply. Exhaling murky air as he relaxed his fur, he furiously glared at the thing outside.
Although at that moment Parker's response was embarrassing and disgraceful, his speed was extremely fast. Even if it were some other snake beastman, he would be able to avoid a fatal blow.
Now that Curtis successfully gave Parker a scare, and seeing that he still had the ability to protect Snow, he temporarily suppressed the rage of him bullying Snow while he wasn't around.
Even though he had said he wouldn't come, he still couldn't bear to be apart from Snow. Even if it was just sleeping here, he felt worried. So, after the skies darkened, he still ultimately made his way up.