<span>Well underlying message technically just means the "theme" of the story. So basically when you read this story ask yourself this: "What does the author want me to thing or feel while i read this?" And whatever your answer is to that is the theme.</span>
Answer: the first one is "champollion was named "keeper of the egyptian collections" the second one is "he had a tremendous job of deciphering and organizing to do" the third one is "his brother completed it for him" and the last one is "scholars were able to trace the entire history of egyptian writing