Ring of Bright Water

Ring of Bright Water is a book by Gavin Maxwell about his life in a remote house in coastal Scotland where he kept several wild otters as pets. First published in 1960, it became a best seller and is considered a literary masterpiece, eventually selling over two million copies. A fictionalised film of the same name was made from it and released in 1969.

Question: is ring of bright water a true story
Answer: yes