According to Goodreads, there is no other version of this book, but I most definitely read a different edition... It was a dyslexia friendly book, which I found cool, the cover image was different, and the guy was also most definitely not called Jamie... he was called Adam.
But no matter on the version of the book or the name of the characters, the point is, that no matter how short this novel was, it was GOOD. Like, not the best, but most definitely good and most definitely about a serious topic.
Most definitely recommend it, it doesn't take longer than 2 hours to read!
:)