Start with what the book does well, because it does one thing extremely well. The premise is a machine: a war college, a bonding ritual where the failure state is death, and a protagonist whose body is the reason she should not be there. Readers who would never normally read dragon fantasy describe the same experience, which is finishing it in a weekend and immediately ordering the sequel. The awards make that concrete rather than marketing: it was named a best book of 2023 by Apple Books, Barnes and Noble, NPR, Audible and Google Play among others, and had the kind of debut year that reorganises a genre's bestseller lists.

Then the accusation, which is remarkably consistent once you start reading the negative reviews. It is almost never about the plot. It is about the writing. A reviewer at the Berkeley Fiction Review put the fair version of it in a single sentence: "Definitely not the best as far as writing fundamentals goes but still a great read!" Readers in fantasy communities tend to go further, and the most useful summary I found came from a reader on a Fantasy Faction thread who split the difference cleanly: "The premise is excellent, but the writing leaves much to be desired in my opinion." The same thread contains the sentence that explains the whole divide, and I think it is the most useful thing anyone has written about this book: if you read for vibes and romance, you will love it, and if you read for prose and worldbuilding, you may not.

Some of the criticism is stronger than that. A piece in The Cor Chronicle, published under the headline Fourth Wing: A Failure of Contemporary Literature, argues that the accessible style is not a virtue but a limitation: the prose reads easily, the reviewer says, because of its immaturity, and accessible books can still have depth. That is a serious charge and I have seen it made well more than once. The thread titles in the fantasy subreddits are blunter, some of them claiming it as the worst fantasy novel they have read, and while I would not go anywhere near that far, pretending the objection does not exist would be dishonest, because it is the single most common reaction from readers who bounce off it.

One thing worth knowing about this particular edition, because it is not the original release. It now includes three bonus chapters narrated by Teddy Hamilton, which is why the runtime sits at 22 hrs and 2 mins, and the publisher's note tells you to re-download the title if you bought it earlier to get the extended version. Rebecca Soler reads the main text, and if you already own an earlier copy, it is worth taking the two minutes to refresh it, because there is no extra charge.

The content warning is not decorative either: this is a war college, the deaths are frequent and often sudden, and there is explicit sexual content on the page. For anyone coming from the romance side of the shelf, the dragon training sequences are considerably more violent than the cover suggests.

So the honest recommendation is the one the readers themselves keep giving. If you want plot, momentum and a love story you will finish in two sittings, start here, then go straight to Iron Flame. If you want sentences you will underline, this is not that book. And if you have already read the series and want the day the whole thing turns on, the collection of Threshing stories is here: Threshing Day finally shows Xaden's own bonding, which is the piece three novels left out.