Frankenstein by Mary Shelly Chapter 23 Page 11

Cursed, cursed be the fiend that brought misery on his grey hairs and doomed him to waste in wretchedness! He could not live under the horrors that were accumulated around him; the springs of existence suddenly gave way; he was unable to rise from his bed, and in a few days he died in my arms.

What then became of me? I know not; I lost sensation, and chains and darkness were the only objects that pressed upon me. Sometimes, indeed, I dreamt that I wandered in flowery meadows and pleasant vales with the friends of my youth, but I awoke and found myself in a dungeon. Melancholy followed, but by degrees I gained a clear conception of my miseries and situation and was then released from my prison. For they had called me mad, and during many months, as I understood, a solitary cell had been my habitation.