In "Watership Down" by Richard Adams, the term "Inle" refers to a dark and malevolent character, often associated with the afterlife in the rabbits' mythology. One of the most notable quotes mentioning Inle is when the rabbits speak of him as a figure of fear.
To provide an accurate quote, here’s a paraphrased version: "Inle is the great enemy of rabbits, and he watches over the dark, cold waters."
For the exact wording, I recommend checking the book itself, as it beautifully portrays the deep-seated beliefs and fears of the rabbits concerning their world. Would you like a summary or analysis of that part of the story?