Respuesta :
Julia is described as "haughty" because she is being arrogant and disdainful; her words make her sound as though she thinks herself to be superior in knowledge.
Answer:
Because she is being arrogant
Explanation:
Julia has done the Dark Walk run since she was a little girls and she remembers it absolutely well, so she considered impossible and even more ridiculous that there could be a well in such dark and scary place, trying not to fall in what she thought was a trick she contemptuously said "Nonsense" as a way to tell them she was not being foolish.