Doctor Henry Jekyll is a very successful doctor at the age of thirty-one. He lives in a very nice house in the centre of London and he has a butler named Poole. Dr Jekyll is a tall, thin man, and he is always very well-dressed. He wears expensive grey suits and large bow-ties. He has short, dark hair and he has a thin moustache. Dr Jekyll’s laboratory is at the top of some very long dark stairs. The lights in that part of the house are usually on very late at night. On the night when this story ...