Purple logos are navigational links. Red logos appear at the tops of individual highlight pages and are an alternate link back to the antecedent page. Question marks activate a pop-up definition of the topic heading. Just hold your cursor over it or click on it. Whatever color, balloons are all hot.
Most sections consist of more than one part.
If you want to leave a section early, you can skip to the top anytime and bail out from there to the Home page by clicking the yellow logo. Most sections consist of more than one part. If you want to leave a section anytime, just skip to the bottom and go from there to the Index or to the next mystery destination through the secret doorway. Neater and quicker than scrolling down, and easier on the eyes, too. They also create smooth transitions between section parts.