Yes. Every book in the entire Collapse Series is on sale for 99 cents for FIVE DAYS ONLY:
This has become my annual Christmas-time tradition. With State of Destruction coming out on January 29th, 2016, I would advise you to snap up all the books in the series before the release and catch up while you have the chance!
Thank you for your readership. I love you ALL!
And don't forget, you can ALWAYS get The Zero Trilogy for just 99 cents, with the final installment being sold for only 1.99, all year long!