A Google search that brought someone to my post “Extra credit?”: extra credit inverabretes creative story. So:
Once upon a time, there were three inverabretes. They were careless spellers, every one. And when they did not do well on their spelling test, they asked their teacher for extra credit. “Plese, plese, plese,” they cried. Their teacher, who had a backbone, suggested that they study harder for the next test. And they did. And they did better.