Just read "Love and Inheritance" (https://storiesonline.net/s/15047/love-and-inheritance?page=2) and when I got to the end, I saw "The End."
But further down, there's "[Bookmark Next]" which seems inappropriate.
I'm not sure if this is a bug, or just a mislabeling. I'm sure "Bookmark Next" probably translates into "Add to Library" or something. But maybe it is a bug, so I'm reporting it.