When Utterson finally manages to see Jekyll at dinner, he is able to raise the name of Mr. Hyde. What is interesting about Dr. Jekyll is the way that he immediately responds to the introduction of this name into conversation:
The large handsome face of Dr. Jekyll grew pale to the very lips, and there came a blackness about his eyes. "I do not care to hear more," said he. "This is a matter I thought we had agreed to drop."
Even though he tries to avoid the topic of conversation, when pressed, he goes on to say that he is "painfully situated" and that his situation is "a very strange one." The way in which he speaks about Mr. Hyde and his inextricable relationship with him obviously only adds to the mystery of this curious figure and what on earth he can have to relate him to a man of culture and manners such as Dr. Jekyll. It does hint at some terrible secret that will only be discovered after the death of both of these characters.