I love those old novels that have the illustrations with the captions under them. In my youth I would, of course, flip through the book and check out the drawings before reading, and if there was a picture that was particularly exciting, I'd skim quickly to find the part of the story it was depicting.
Most of the time I wouldn't get around to reading the book. I'd tear out the illustration, put it up on my wall and toss the book out. That way you have a mysterious story fragment with an illustration and you can think up a tale of your own to go with it.
Like this one.
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The End.