Book Riot s Mystery and Thriller Deals for August 15 2022 - 77Book Riot s Mystery and Thriller Deals for August 15 2022 - 75Book Riot s Mystery and Thriller Deals for August 15 2022 - 4Book Riot s Mystery and Thriller Deals for August 15 2022 - 86Book Riot s Mystery and Thriller Deals for August 15 2022 - 81