In Robert Louis Stevenson's story The Strange Case of Doctor Jekyll and Mr. Hyde, the character Henry Jekyll doesn't seem to be able to control his alter-ego: Mr. Hyde . At the beginning of the tale, he had quite a bit of control over Mr. Hyde, but as the tale progressed, Dr. Jekyll's strange other self was the one who began to control him. The research he conducted became progressively compelling. Every time he was used, he got closer and closer to death. A series of significant events have caused his decline from being the perfect Henry Jekyll to a Henry Jekyll who has no control over his monstrous self. It was simply his character and decisions that started his addiction. There were a lot of choices in the narrative that he made that made things fall apart. In the final chapter, it was revealed that his research was not only for scientific purposes, but also for his personal desires. It says here: “I had learned to dwell with pleasure, like a beloved daydream, on the thought of the separation of these elements. If everyone, I told myself, could be housed in separate identities, life would be relieved of all that is unbearable.” (Stevenson 50) This quote essentially says that if Jekyll could discover the answer to his quest, then he would be able to house the good and bad sides of people into separate identities. With that, an individual could do anything as his alter ego that he couldn't do normally. This was the first proof that it was Jekyll's fault that he had experienced his own downfall. Jekyll showed an extreme desire for that kind of discovery, which meant that it was his decision to complete the quest. Jekyll also said that we would even die for such a discovery. He said it here: “I hesitated for a long time before putting this theory to the test of practice. I knew well that I risked death." (51) Not only was he aware that death was a