Mr. Utterson again walked some way in silence and obviously under a weight of consideration. "You are sure he used a key?" he inquired at last. From this he was recalled by Mr. Utterson asking rather suddenly: "And you don't know if the drawer of the cheque lives there?" Men have before hired bravos to transact their crimes, while their own person and reputation sat under shelter. I was the first that ever did so for his pleasures. I was the first that could plod in the public eye with a load of genial respectability, and in a moment, like a schoolboy, strip off these lendings and spring headlong into the sea of liberty. But for me, in my impenetrable mantle, the safety was complete. Think of it—I did not even exist! Let me but escape into my laboratory door, give me but a second or two to mix and swallow the draught that I had always standing ready; and whatever he had done, Edward Hyde would pass away like the stain of breath upon a mirror; and there in his stead, quietly at home, trimming the midnight lamp in his study, a man who could afford to laugh at suspicion, would be Henry Jekyll.

I resolved in my future conduct to redeem the past; and I can say with honesty that my resolve was fruitful of some good. You know yourself how earnestly, in the last months of the last year, I laboured to relieve suffering; you know that much was done for others, and that the days passed quietly, almost happily for myself. Nor can I truly say that I wearied of this beneficent and innocent life; I think instead that I daily enjoyed it more completely; but I was still cursed with my duality of purpose; and as the first edge of my penitence wore off, the lower side of me, so long indulged, so recently chained down, began to growl for licence. Not that I dreamed of resuscitating Hyde; the bare idea of that would startle me to frenzy: no, it was in my own person that I was once more tempted to trifle with my conscience; and it was as an ordinary secret sinner that I at last fell before the assaults of temptation. Jekyll asserts that “man is not truly one, but truly two,” and he imagines the human soul as the battleground for an “angel” and a “fiend,” each struggling for mastery. But his potion, which he hoped would separate and purify each element, succeeds only in bringing the dark side into being—Hyde emerges, but he has no angelic counterpart. Once unleashed, Hyde slowly takes over, until Jekyll ceases to exist. If man is half angel and half fiend, one wonders what happens to the “angel” at the end of the novel. Mr. Utterson sighed deeply but said never a word; and the young man presently resumed. "Here is another lesson to say nothing," said he. "I am ashamed of my long tongue. Let us make a bargain never to refer to this again."A year later, the police summon Utterson after they discover a note with his name on it on the body of Sir Danvers Carew, a member of Parliament and client of Utterson that Hyde murdered. Utterson leads the police to Hyde’s apartment, and while he is nowhere to be found, they learn that Hyde has an account at a local bank. For weeks, the police expect Hyde to appear at the bank to withdraw money, but he never comes. Chapter 5 Dr. Jekyll and Mr. Hyde centers upon a conception of humanity as dual in nature, although the theme does not emerge fully until the last chapter, when the complete story of the Jekyll-Hyde relationship is revealed. Therefore, we confront the theory of a dual human nature explicitly only after having witnessed all of the events of the novel, including Hyde’s crimes and his ultimate eclipsing of Jekyll. The text not only posits the duality of human nature as its central theme but forces us to ponder the properties of this duality and to consider each of the novel’s episodes as we weigh various theories. Yet if Hyde were just an animal, we would not expect him to take such delight in crime. Indeed, he seems to commit violent acts against innocents for no reason except the joy of it—something that no animal would do. He appears deliberately and happily immoral rather than amoral; he knows the moral law and basks in his breach of it. For an animalistic creature, furthermore, Hyde seems oddly at home in the urban landscape. All of these observations imply that perhaps civilization, too, has its dark side.

Mr. Utterson is a wealthy, well-respected London lawyer, a reserved and perhaps even boring man who nevertheless inspires a strangefondness in those who know him. Despite his eminent respectability, he never abandons a friend whose reputation has been sullied or ruined. Mr. Enfield and the lawyer were on the other side of the by-street; but when they came abreast of the entry, the former lifted up his cane and pointed. Tut, tut!" said Mr. Utterson; and then after a considerable pause, "Can't I do anything?" he inquired. "We are three very old friends, Lanyon; we shall not live to make others." But Lanyon's face changed, and he held up a trembling hand. "I wish to see or hear no more of Dr. Jekyll," he said in a loud, unsteady voice. "I am quite done with that person; and I beg that you will spare me any allusion to one whom I regard as dead." He is not easy to describe. There is something wrong with his appearance; something displeasing, something down-right detestable. I never saw a man I so disliked, and yet I scarce know why. He must be deformed somewhere; he gives a strong feeling of deformity, although I couldn't specify the point. He's an extraordinary looking man, and yet I really can name nothing out of the way. No, sir; I can make no hand of it; I can't describe him. And it's not want of memory; for I declare I can see him this moment."Yes, I preferred the elderly and discontented doctor, surrounded by friends and cherishing honest hopes; and bade a resolute farewell to the liberty, the comparative youth, the light step, leaping impulses and secret pleasures, that I had enjoyed in the disguise of Hyde. I made this choice perhaps with some unconscious reservation, for I neither gave up the house in Soho, nor destroyed the clothes of Edward Hyde, which still lay ready in my cabinet. For two months, however, I was true to my determination; for two months, I led a life of such severity as I had never before attained to, and enjoyed the compensations of an approving conscience. But time began at last to obliterate the freshness of my alarm; the praises of conscience began to grow into a thing of course; I began to be tortured with throes and longings, as of Hyde struggling after freedom; and at last, in an hour of moral weakness, I once again compounded and swallowed the transforming draught.