In these two chapters, the duality of Jekyll is revealed and the door once again plays a pivotal role in the story. Consider the scene around the door to Jekyllâs lab and all of those involved (Poole, Utterson, the maid, Bradshaw). How do the actions of these characters, particularly Poole, further develop the symbolic value of doors in the novel? How does Stevenson bring the metaphor of the door "full circle" in this chapter?