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Page counts vary by edition. Listed counts for Onyx Storm include 648 pages and 896 pages, depending on the specific edition.

Onyx Storm is listed in English and Spanish.

Some collectible editions include features such as sprayed or stenciled edges, full-color or custom endpapers and artwork, a black ribbon bookmark, foiled hardcases or jacket-less foiling, and signed first-printing options.

Reviewers often praise the design and appearance of collectible editions—calling out sprayed edges, artwork, and other special edition details—and several reviews also note careful or protective packaging on arrival.

Hardcover editions show varying dimensions: heights around 9–9.25 inches, widths about 5.91–6.12 inches, and thicknesses roughly 1–2.3 inches. Listed weights range from about 1.0 to 2.51 pounds depending on the edition.

Listings categorize Onyx Storm as Fiction with subgenres including Fantasy, Romance, and Young Adult Fantasy. Descriptions and synopses highlight themes and elements such as war-college training, dragons, and magic.