The book contains stories such as those of heroic quests, magical encounters, and personal growth. They all contribute to the overall charm and depth of 'El Libro de la Vida'.
It could be a reference to 'The King of Science Fiction'. Maybe it's the name of a science - fiction related entity like a magazine, a book series, or a character in a science - fiction story.
In most cases, 'El Rey' is not based on actual events. It's more of a fictional narrative crafted for entertainment purposes. The plot and characters might be inspired by various elements but not by real-life happenings.