"About your father, how strong is he?" Arthur asked Nova.
He already had some conclusions about the werewolf family and they weren't a threatening existence even though there might be some very strong werewolves. It's not about their strength, but the way they act. They could be said to be a group of people with rules.
Arthur thought he could interact with them to learn things. There may be some things Nova doesn't know, but her father, or higher members might know more.
Nova knit her brows at Arthur's question, looking like she had trouble answering.
Seeing that, Arthur couldn't help but ask again. "Is there something wrong with him?"
If her father had been someone of such great strength that Nova believed he could defeat Arthur, he would probably have taken her father's name or at least confidently said he was very strong.
However, she hesitated. That could be said as an indication that she couldn't truly rely on her father.