The Many Fates of Mary Sue
Disclaimer: This story is based on any and all of JRR Tolkien's works set in Middle-earth, ie. The Lord of the Rings, The Silmarillion, The Hobbit, The Book of Unifinished Tales and the assorted History of Middle-earth books. It also contains various tropes about that strange life-form known as the Mary Sue. I make no money off this, and am writing purely for your and my amusement.
Prologue: the Suethor's Evil Program
Cackling evilly, the Suethor leaned back in her computer chair. She had finally finished the programming that would allow her to send hundreds of copies of the perfect girl to Middle-earth. They would be tall and impossibly beautiful, with blue-black hair and eyes that were a highly unlikely shade of blue. Of course, they'd be arriving at random times and places, but you couldn't have everything. All she had to do now was sit back and watch...
She smiled happily as the first story began to appear on the screen. And then sat bolt upright swearing angrily. When she had allowed the time and place to be random, she had not meant for any of them to land in the middle of the Ekkaia and drown. She reached for the mouse to check over the code, but then realized she wouldn't be able to change anything until the entire program had finished its run. There was nothing she could do now but sit back and watch.