Key learning points

1. Utterson visits Jekyll in his laboratory, which is full of symbols relating to concealment
2. Utterson assumes that Jekyll is a victim of blackmail and must be concealing a secret to protect his reputation
3. The setting of London and the motif of fog in particular further link to concealment
4. The forged letter provides another key clue to Jekyll and Hyde's linked identity and therefore duality
5. The letter is another key clue which forms part of the detective plot

Keywords

• Dissecting-rooms - Dissecting-rooms are places where anatomical dissections are carried out, typically for scientific or medical purposes.

• Cupola - A cupola is a small dome, especially one adorning the top of a building or structure.

• Baize - Baize is a soft, usually green, felt-like material used to cover billiard tables, among other things.

• Cheval-glass - A cheval-glass is a full-length mirror mounted on swivelling frames, allowing one to see oneself from head to toe.

• Carbuncle - A carbuncle is a bright red gem, often used to describe something glowing or shining.

Common misconception