Basgiath War College · Riders Quadrant

Empyrean Reading Order

Read Fourth Wing, then Iron Flame, then Onyx Storm, then Threshing Day. The first three are the main novels and run in publication order. Threshing Day is a companion collection catalogued as The Empyrean #3.5, and it reads best after all three.

A high ridge looking down into a valley filled with mist at dusk.
Read the novels first. The companion sits where you can see the whole valley.

The order, in short

Main novels
Fourth Wing, Iron Flame, Onyx Storm
Companion collection
Threshing Day, published September 29, 2026
Recommended order
Fourth Wing, Iron Flame, Onyx Storm, Threshing Day
Catalogue position
The Empyrean #3.5
Reading position
Last, despite the number
Book four
In progress, untitled, no announced date
Official reading order
Not announced by the author
Reading order here
This site's own recommendation, spoiler-conscious

The path

Fourth Wing

Start here. It builds the Riders Quadrant, the Parapet, the Gauntlet and Threshing, and it ends on a reveal that changes what the whole series is about.

Iron Flame

The second novel widens the war and answers questions the first book raises about the wards, the fliers and the history the college teaches. It also introduces riders who matter in the collection.

Onyx Storm

The third novel, and the current end of the main storyline. It leaves the arc open, and the fourth novel will continue it.

Threshing Day

Read it last. Thirteen riders tell their own Threshing, arranged by year, framed as testimony collected after the fact. Nothing in it moves the main plot forward, and everything in it changes how the earlier books read.

Why the number says 3.5 and the reading says last

A catalogue number records where a book sits in a series. It is not a reading instruction. Threshing Day is numbered 3.5 because it belongs to the Empyrean world between the third and fourth novels, and because it is a companion collection rather than the next chapter of the main story.

Read it last anyway. The frame is retrospective: two Basgiath dragonkind professors collect rider testimony and transcribe it from Navarrian after the fact. That frame assumes the reader knows the riders, and several of the accounts land hardest if you have already seen where those riders end up.

One account in particular pays off a death that Fourth Wing spends its entire length preparing. Read the collection first and you lose the scene the first book was building toward for six hundred pages.

Where to go, depending on what you want

This table is a navigation aid, not a claim about how the books should be read. Any order works if you accept the spoilers it costs.
What you wantGo hereWhy
The full series in orderFourth Wing, then Iron Flame, then Onyx StormPublication order is also story order for the main novels.
The day the dragons chooseThreshing Day, after Onyx StormThirteen accounts of one annual event, told by thirteen riders.
What Threshing isDragon ThreshingThe ritual, the rules and the valley, without needing a book first.
The dragons themselvesDragon RegistryEvery named dragon, with riders held behind spoiler gates.
The collegeBasgiath War CollegeThe quadrants, the Parapet, the Gauntlet and the Vale on a map.
A dragon of your ownPlay the gameThree minutes, no account, and the engine decides what answers.

Do you need the books to play the game?

No. The game on this site is standalone. You create a cadet, walk into the valley, make a few choices and meet whatever answers. The engine, the scenes and the dragons it produces are this site's own invention, not an adaptation of any book scene.

If you have not read the series, set your spoiler level low and the archive will keep riders, pairings and later-book material behind its gates. If you have read everything, raise it and the same pages open all the way out.

What reading it last preserves

Spoilers: Threshing Day

This section contains material from later in the series.

The collection confirms what happened to Brennan Sorrengail years before the main series, and it hands over a death that Fourth Wing spends its whole length preparing, told from the perspective of the rider who lived it.

It also gives first-person accounts of moments the main novels only report: the ambush that shaped the marked ones before they reached the quadrant, a dragon who waited, and a bonding that began before the rider even mounted.

None of that is required to follow the main plot. All of it is better with the main plot already behind you.

Questions people actually ask

Fourth Wing, then Iron Flame, then Onyx Storm, then Threshing Day. The first three are the main novels. Threshing Day is a companion collection that reads best once the novels are behind you.

You could, because the stories look backwards to earlier years. It is not recommended: the collection reveals a death the first book spends its whole length preparing, and it assumes you know the riders.

It is an official Empyrean release, so it is part of the world. It does not continue the main plot that Onyx Storm leaves open. Read it for the thirteen Threshings, not for the next chapter of the war.

Yes, in progress, and no title or date has been announced. Threshing Day is not that book, and is catalogued separately as The Empyrean #3.5.

Because the catalogue number records where it sits in the series rather than when to read it. The collection is retrospective, so reading it after Onyx Storm costs nothing and gains a great deal.

No. The game is standalone and runs on this site's own invention. Your spoiler setting controls how much book material the archive shows you while you play.

Ready to be chosen?

No reading required. Your spoiler setting decides what the archive shows.

Start with the game instead