I am not sure if this is the answer since you didn't give me the chapters.
Jekyll owns a fancy town house with a tumble down lab on the back. The town house is described as having an 'open fire' in the front hall. This represents Jekyll as it is warm and inviting and hugely welcoming – all things that match Jekyll's character. Jekyll assures Utterson that he will never again set eyes on Hyde, that Hyde is "quite safe," and that he will never be heard of again. Utterson is concerned, however, and betrays his anxiety for his old friend Jekyll. At this, Jekyll takes out a note and asks Utterson to study it and keep it for him. (creds to internet)
