Fourth Wing's ending explained: the War Games were never a test
The last act of Rebecca Yarros' Fourth Wing is built like a final exam. By the time Violet Sorrengail figures out what she's actually being graded on, it's too late to drop the class.
Spoilers for the full novel and a few for Iron Flame below.
For most of Fourth Wing, the War Games look like what Basgiath says they are: college-wide exercises that pit the four wings against each other. Violet's first rounds go about how you'd expect for a first-year riding the most dangerous dragon in the quadrant.
Fourth Wing has to defend its flag and steal an egg from First Wing, and Violet saves Liam Mairi's life by using Andarna's power to stop time. It's chaotic and violent, and it's still recognizably school.
The final event
Then Commandant Panchek announces the last round as a mock invasion. Cadets are told to act as if the wards protecting Navarre are failing and gryphon riders are coming over the border. Fourth Wing is sent southeast, where squads pick outposts to reinforce.
Xaden Riorson, Fourth Wing's leader, gets assigned Athebyne as the wing's headquarters. It sits outside the wards. He takes the people he trusts most, mostly fellow marked ones, children of the rebellion's executed leaders, plus Violet.
When they land, Athebyne is empty. The only thing waiting for them is a missive from Colonel Aetos, Dain's father. It says the wing's headquarters has moved to Eltuval, they can still make it there if they leave now, and their job is to survive if they can.
The choice it was built around
Right next to Athebyne is Resson, a trading post on the Poromiel side, which makes it enemy territory by Navarre's rules. And Resson is under attack. Not by gryphons, but by venin, dark wielders the riders were taught were a legend, and their wyvern.
The squad's options are simple:
- Follow orders: Fly to Eltuval, finish the War Games and let Resson's civilians die.
- Stay: Fight beside the gryphon riders Basgiath trained them to kill, against enemies their own government says don't exist.
They stay. That's the moment the exercise stops being an exercise.
Who sent them there, and why
Xaden works out what happened before the fighting starts. Dain's signet lets him read someone's recent memories by touch, and he'd read Violet's memory of Xaden telling her about his runs to Athebyne. Dain reported it to his father. Command then sent the people it suspected of treason beyond the wards on an "exercise" with an empty outpost and a polite note.
Xaden blames Violet in the moment, which doesn't help anyone. The person who actually wrote the death order is a colonel, and the person who handed him the reason was Violet's oldest friend.
There's one more layer. General Melgren's signet shows him how battles will end, but he can't see fights where several marked ones are together. So nobody at Basgiath could foresee how Resson would go, and it's one reason the marked ones are forbidden from gathering in the first place.
What it costs
The battle at Resson is where Yarros stops protecting anyone:
- Liam Mairi: His dragon, Deigh, is killed, and a rider whose dragon dies goes with it. Liam dies in Violet's arms and asks her to look after his sister, Sloane.
- Soleil: Another of the marked ones dies in the same fight.
- Violet: She's stabbed with a poisoned dagger, and Xaden flies her out half-dead.
She wakes up in Aretia, the rebellion's hidden base. The person who healed her is her brother Brennan, who was supposed to have died years ago. The book ends with him welcoming her to the revolution, and with Violet realizing that her mother, the general running Basgiath, has known about the venin all along.
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Why "never a test" is the right read
The War Games fail as a test twice over. The last exercise was a disguised execution order, and the whole Games, like the whole college, prepared riders for the wrong war. Basgiath grades cadets on fighting gryphons, and the real enemy was the thing the gryphon riders were already fighting.
Iron Flame picks it up right away. The survivors go back to Basgiath and tell the official lie, that gryphons killed Liam and Soleil at Athebyne. Xaden publicly accuses Colonel Aetos of sending cadets into combat, and Dain insists he never meant for anyone to die. Violet doesn't buy it.
The only cadets who passed the final War Game were the ones who refused to play it.
Coming to the screen
Prime Video ordered a Fourth Wing series at its May 2026 upfront, with Meredith Averill as showrunner, Lisa Joy directing the first episode and Michael B. Jordan's Outlier Society producing. Production was expected to start in the second half of 2026.
If season one covers the first book, Resson is the finale it's building toward. Fans who already know how that missive ends are going to spend the whole season watching Liam's dimples with dread.
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