Is The End of Mr Y a book?

There isn't a widely known book called "The End of Mr. Y." It's possible that it's a:

* Less popular or niche book: It might be a self-published work, a book in a specific genre, or one that hasn't gained mainstream attention.

* Title variation: The title might be slightly different, like "The End of Mr. Y's Journey" or "The End of Mr. Y and the..."

* Misremembered title: You might be thinking of a different book with a similar premise or theme.

To help me figure out what you're looking for, could you provide more information?

* What is the genre of the book? (e.g., fiction, mystery, romance, etc.)

* What is the plot or theme of the book?

* Do you remember any of the author's name or other details?

With more information, I can try to locate the book you're looking for.