The Ultimate End

The Ultimate End is a story in which an alternate TUA Universe (called "Ultiverse" in the story) is destroyed (called "the Ultimate Disaster") by the canon TUA Universe accidentally. It is often thought to have been an experimental story to see how an end of the TUA Universe would occur. In particular, the story focuses on the actions of the alternate Universe Writers, who for the most part fail to save the alternate TUA Universe.