FREE BOOKS: The latest Stuff Your Kindle Day takes place on April 23. The Cozy Mystery Book Blast , hosted by Cozy Mystery Book Club, isoffering cozy mystery books for free. This has been such a huge month for Stuff Your Kindle Day. We've already been blessed by a number of free giveaways, and we're not done yet. The Cozy Mystery Book Blast , hosted by Cozy Mystery Book Club, is offering participants the chance to download 150+ ebooks without spending anything. Everything that you download is yours to keep forever, so take this as your sign up to stock up ahead of the summer reading season. Looking to make the most of the latest Stuff Your Kindle Day ? We've lined up everything you need to know about this popular event. When is Stuff Your Kindle Day? The Cozy Mystery Book Blast takes place on April 23. This free giveaway only lasts 24 hours, so you will need to act fast to download everything you want to read.…