If you purchase an independently reviewed product or service through a link on our website, Variety may receive an affiliate commission. It’s official: author Rebecca Yarros ‘ “Empyrean” book series is heading to the small screen with a new Amazon Prime Video series based on the first book, “ Fourth Wing .” First released in 2023, “Fourth Wing” became a runaway bestseller, topping critics’ lists and TikTok charts alike. Tracing the story of Violet Sorrengail, who enters a college for dragon riders to prepare for war, the fantasy romance novel is still on the Amazon charts some three years later. Two more books followed — “Iron Flame” and “Onyx Storm” — and now, Amazon has discounted the entire three-book set on the heels of the series adaptation news. LIMITED-TIME DEAL The Empyrean Series Three-Book Collection Set This Amazon deal gets you all three books on hardcover for 29% off for a limited time. This is a great opportunity for new and old fans alike to catch up on the series before the show premieres.…