About a month ago, I had asked if there was a way to list a story in more than one place, perhaps some feature in outline. Sad to say the answer was no, but like a cat with a new ball I just can't let the idea go and I would like to suggest something a bit different.
Create two title pages, one in the Universe Book, for example "the Dark Realms Universe" and the other in your book, outlined to your author page. See "One of These Days, Let's Get Organized!"
Pick one and outline all the chapters to that book and in the other, place just one linked word, ENTER or OPEN or what not, and link it to the title page with the chapters. See "Creating a Hypertext linked Word in Your Writing".
Now a reader will find your work both by your Book and/or the Dark Realms Book and each will show up in their own right hand margin listing.