Qetsiyah didn't buy what Katerina just said, how can she say that she had not heard of magic when she have a hint of magic in her, is it that the travellers had disregarded the branch family over the years making them oblivious to magic or Katerina is just so good at lying that she could make such a poker face, after all she is a descendants of that manipulative bitch, so it wouldn't be a surprise.