Purchase a used version online from Amazon or the likes or visit a local used bookstore. You can find it online here if you need it now:  readbooksonline.weebly.com

Try readnewmoon.weebly.com. This site will tell you where to go to read it without having to download a file.

That's not true. There are some companies that will rent to individuals under 18 years of age. They will charge you an underage rental fee, but at least you are allowed to rent a car under 21.