Shannon Hale said this quote
“ What are you doing? Ya! said Jane, whirling around, her hands held up menacingly. It was Mr. Nobley with coat, hat, and cane, watching her with wide eyes. Jane took several quick (but oh so casual) steps away from Martin's window. Um, did I just say, 'Ya'? You just said 'Ya,' he confirmed. If I am not mistaken, it was a battle cry, warning that you were about to attack me.I, uh... She stopped to laugh. I wasn't aware until this precise and awkward moment that when startled in a startled in a strange place, my instincts would have me pretend to be a ninja. ”