Cryptogram from Frankenstein; or, the modern prometheus, chapter 12

"My mode of life in my hovel was uniform. During the morning I attended the motions of the cottagers, and when they were dispersed in various occupations, I slept; the remainder of the day was spent in observing my friends. When they had retired to rest, if there was any moon or the night was star-light, I went into the woods and collected my own food and fuel for the cottage. When I returned, as often as it was necessary, I cleared their path from the snow and performed those offices that I had seen done by Felix. I afterwards found that these labours, performed by an invisible hand, greatly astonished them; and once or twice I heard them, on these occasions, utter the words good spirit, wonderful; but I did not then understand the signification of these terms.

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"These thoughts exhilarated me and led me to apply with fresh ardour to the acquiring the art of language. My organs were indeed harsh, but supple; and although my voice was very unlike the soft music of their tones, yet I pronounced such words as I understood with tolerable ease. It was as the ass and the lap-dog; yet surely the gentle ass whose intentions were affectionate, although his manners were rude, deserved better treatment than blows and execration.