The product is the "Onyx Storm" Deluxe Limited Edition book by Rebecca Yarros, part of "The Empyrean Ser." series. Published by Entangled Publishing, LLC in 2025, this hardcover book is 9.3 inches long, 6.4 inches wide, and 1.5 inches tall, weighing 28.9 ounces with 544 pages. Written in English, it falls under the genres of Fiction, Fantasy, and Romance, featuring themes of Fantasy, Romance, and Epic storytelling. This special edition offers a unique reading experience for fans of the author's work.