Authors Note: While reading chapters 8 and 9 i noticed a common theme of representing Hyde as the forbidden knowledge, that Jekyll should not have ever of found nor shared with anyone in fear of condemning them too.

At the beginning of chapter nine it starts with a letter from Henry Jekyll that was sent to Mr. Lanyon. This letter tells Mr. Lanyon that he must get a cabinet for Jekyll and bring it to his home, insisting that if he did not do as Jekyll requested it would end with dire consequences. later in the chapter after Lanyon has previously brought the cabinet home he hears a faint knock on his door. there on the front step he finds Hyde, who emerges from the dark and welcomes himself in claiming that he is there on Jekyll's terms. There Hyde finds the Cabinet and gives an offer to Lanyon. This offer is either for Lanyon to keep his innocence or to receive the forbidden knowledge. Hyde's offer is a lot like the offer the devil gave to Adam and Eve in the garden of Eden. The devil's or Hyde's offer is to great for Lanyon and he caves rendering his soul and innocence open for the taking. Jekyll too had traded his soul and freedom of will for this knowledge that now does him no good other than to pawn it off on others, ruining them as well. It is only once Jekyll has the forbidden knowledge does he realize that he never needed it and all it has done was bring him grief. For this reason Jekyll knows he must destroy himself, in so destroying Hyde (his forbidden knowledge). That is why I believe that Jekyll had killed himself, in order to save his friends from meeting a similar end.