Central Idea - The main point of a book. You would find these most likely or mainly in informational texts. These are not found in novels or fictional books. You would find these in fact based books.
Message - (Also known as theme) Message is the main moral of point of the story.The theme is the big idea.
Theme is found in a fictional book or novel, not in a fact based book. Central ideas are found in fact based books.
Atalanta showed her skill when she hunted a bear. Though it was killed by Meleager, she was the
one who succeeded in wounding it. She also defeated Hercules’ father Peleus in
a wrestling match. She is said to be as
strong and athletic as she was beautiful.