The Black Arrow is, without a doubt, one of my all time favorite books, just as Robert Louis Stevenson is one of my all time favorite authors. I find it hard to believe that The Black Arrow is probably the least well know of his great adventure novels (the others being, of course, Treasure Island and Kidnapped), as it is certainly the best as far as I am concerned.
As far as the story goes, it is one of the most entertaining plots that I have ever encountered. It is filled with more twists and turns than I would have thought possible, but remains very clear and fast paced. The characters are wonderful, as is the description and the writing itself. Granted, some of the language is a bit archaic, but I feel that this adds a lot to the authenticity of the story.
The Black Arrow is not a very easy read at first, but once you get into it it really flies by. It is as entertaining, exciting, and intriguing book as you will find, and I would recommend it to anyone.