Final answer:
The short story 'Accidental Hero' by Zadie Smith is not publicly available as it is part of her latest collection of stories titled 'Grand Union' published in 2019.
Step-by-step explanation:
The short story 'Accidental Hero' by Zadie Smith is not available for public reading as it is part of her latest collection of stories titled 'Grand Union' published in 2019.
The story was not included in the public previews or promotions of the book, making a summary of the story unavailable. You can read the collection to explore the themes, characters, and plot of the various stories included.
Keywords: Zadie Smith, Accidental Hero, Grand Union, short story collection, themes, characters, plot