The Incident of the Letter
Utterson visits Jekyll and finds him in his laboratory. The laboratory is a mess, with packing crates and straw covering the floor. Jekyll himself looks ill. Utterson is concerned that Hyde, now a suspected murderer, is connected to Jekyll, and so the murder will bring shame on the doctor.
Jekyll reassures Utterson that Hyde will never contact him again. He says that he has received a letter from Hyde saying that he would flee London, and no more bother Jekyll.
The letter is given to Utterson who takes it away to think over. However, before he puts it in his safe, he has one of his clerks look it over. The handwriting is very similar to that of doctor Jekyll. Utterson believes that Jekyll has written the note, but he is forging the note for Hyde.