Puzzled, the lawyer visits Jekyll and their mutual friend Dr. Lanyon to try to learn more. Lanyon reports that he no longer sees much of Jekyll, since they had a dispute over the course of Jekyll’s research, which Lanyon calls “unscientific balderdash.” Curious, Utterson stakes out a building that Hyde visits—which, it turns out, is a laboratory attached to the back of Jekyll’s home. Encountering Hyde, Utterson is amazed by how undefinably ugly the man seems, as if deformed, though Utterson cannot say exactly how. Much to Utterson’s surprise, Hyde willingly offers Utterson his address. Jekyll tells Utterson not to concern himself with the matter of Hyde.