Final answer:
Miss Scarlet from 'Scene 6' is questioning the situation regarding why someone would move a dead body and what their reasons could be, which indicates her involvement in the investigation of a mystery within the story.
Step-by-step explanation:
The dialogue presented from 'Scene 6' involves Miss Scarlet responding to the situation. Upon examining the context and tone of her statement, it is clear that Miss Scarlet is questioning the situation, showing surprise or incredulity as to why someone would move a dead body and what their motivation might be. This line of questioning seeks to uncover the reasons and circumstances behind an event that has transpired, indicative of a mystery or a play of investigative nature. It does not point directly to an accusation, a confirmation, or denial, but rather to an inquiry into the motives behind an action connected to a crime or murder within the narrative of the work.