secret #19:

Roll your mouse over the "Disclaimer: MuggleNet Interactive is a non-commercial website. The money used on this website is a fictional currency." thing in the bottom right-hand corner of any screen. When you hover over the phrase, a pop-up box appears that says "Action is Power". Now click on the "forums" link at the top of the page. Take a look at the URL. boardindex
Delete the part that says "boardindex" and type in the word "power". Hit enter