No, the Charmed Vengeance read-along doesn't start until Monday, but that doesn't mean you can't get a jump on it over the weekend. (Monday is the prologue + Chapter 1).
Here's an (awkward) video from last year of me reading part of chapter 1 of Charmed Vengeance to help you get started.
Have a safe and happy 4th of July Weekend!
See you on Monday.