You can't #patent#text, or stories, or any #narrative. Patents are only for "#practical#devices" (though you don't actually have to prove it works, or even build one), although that has been (incorrectly, IMHO) extended to #software as well.
Some #jurisdictions recognize a second kind of patent, called a #design patent, which protects the "look and feel" of whatever's being patented. It also does not apply to text.