Some time later, Utterson receives a visit from Poole, Dr. Jekyll's man servant. Poole suspects that foul play is associated with his employer; Dr. Jekyll, he says, has confined himself to his laboratory for over a week, has ordered all of his meals to be sent in, and has sent Poole on frantic searches to various chemists for a mysterious drug. Poole is now convinced that his employer has been murdered and that the murderer is still hiding in Jekyll's laboratory.