Princess Charlotte and the Pea

When Jacob was commanded by the prince to find a young woman worthy of being his princess, he was told, "If there is one thing a princess should be, it is to have the quality of sensitivity. She must be SENSITIVE!"Of course Jacob was up to the challenge, hiding a pea beneath stacks of mattresses on which each potential princess would lie. Every girl tried to be sensitive enough to feel it; only Charlotte Divine passed the test. But, what did young Charlotte do to make sure her prince was the real deal, that he was more sensitive to the feelings of others than just sensing a pea? You'll have to read the book to find out.