This passage suggests that Inglis believes the events were unfair.
Using the word "peaceful" shows that she believes that was she did was fine because they were not hurting anyone, and that she did not believe she should have been arrested. Also, putting "illegal gathering" in quotations shows that she doesn't actually believe that what she was doing was illegal.
The character's action in a story
The event in the story that is a key detail in Holmes’s solution of the case is "<span>a. the observation that Mr. Wilson belonged to the Freemasons" since this was the society that had raised suspicions before. </span>
The correct answer is C. It was being killed by a giant water bug. I read the book and took the same test. Hope I helped!