“Dear Lanyon⁠—You are one of my oldest friends; and although we may have differed at times on scientific questions, I cannot remember, at least on my side, any break in our affection. There was never a day when, if you had said to me, ‘Jekyll, my life, my honour, my reason, depend upon you,’ I would not have sacrificed my left hand to help you. Lanyon, my life, my honour, my reason, are all at your mercy; if you fail me tonight, I am lost. You might suppose, after this preface, that I am going to ask you for something dishonourable to grant. Judge for yourself.