
The Empyrean · Character
Dain Aetos
Also known as Squad Leader Aetos
- Major
- First seen · Book 1
Dain Aetos is a major character in The Empyrean, first appearing in Fourth Wing (Book 1).
- Gender
- male
- First appears
- Book 1
- Books
- 1
Description
A tall, muscular young man with close-cropped light-brown to sandy-brown curls, striking brown eyes, and a neatly trimmed beard along his jaw. A scar shows through the beard at his chin. He wears black rider leathers or a pristine black uniform, marked with Fourth Wing and compass patches, and carries daggers in side sheaths.
Connections
Friends & mentorsRivals

Liam Mairifellow cadet
Liam is a fellow cadet who could have been assigned with Dain’s group, but Xaden selects him for the headquarters squad because of his skills and loyalty.
- MS
Mira Sorrengailsenior officer
Mira reprimands Dain for letting his conflict with Xaden affect his squad leadership and reminds him of his potential for advancement.

Rhiannon Matthiascadet under his command
Dain is Second Squad’s leader and directs Rhiannon into his squad. Their first interaction is wary: he orders her to keep Violet’s condition private, and she pushes back.

Violet SorrengailFriend
They grew up together from early childhood, and Dain has repeatedly supported Violet through family losses and changes. He protects her in the Riders Quadrant, worries over her safety, and calls her his best friend; Violet trusts him deeply, with some mutual flirtation and possible romantic tension.

Xaden RiorsonProfessional
Dain is a squad leader and Xaden is a wingleader in his chain of command. Their authority places Dain under Xaden’s command, and Xaden openly challenges Dain’s closeness to Violet.
- AM
Amber Mavisformer close friend
Dain says he was very good friends with Amber, now a Third Wing wingleader, during the previous year. He cites her as evidence that riders respect the Codex.
- C
Cathrider
Cath is Dain’s bonded dragon. Their bond channels magic to Dain and gives him the ability to use lesser magic and develop his signet.
- CL
Dain approaches Markham to arrange Violet’s transfer to the Scribe Quadrant for her safety. Markham agrees to take her and says he can keep the transfer from Lilith until Violet is inducted.
- IC
Imogen Cardulosquad superior
Dain holds authority over Imogen during training and reprimands her for using her powers against Violet. He assigns her punishment for the violation.
- N
Nolondisagreeing advocate
Dain asks Nolon not to mend Violet, hoping her injury will let her leave the Riders Quadrant and survive. Nolon rejects the request and mends her.
Story so far
BOOK 1Fourth Wing
Key events
- Book 1
Ch. 5First Sparring AssessmentDuring combat assessment, Jack Barlowe kills a first-year by breaking his neck, and Imogen deliberately breaks Violet's shoulder in revenge against her mother. - Book 1
Ch. 20Amber Mavis ExecutionXaden publicly accuses and executes Wingleader Amber Mavis for orchestrating the attack on Violet, with her dragon Claidh mourning her death. - Book 1
Ch. 35Memory Reading BetrayalAt the abandoned Athebyne outpost, Violet learns Dain read her memories without consent and passed information to his father, leading to their deadly assignment.
Gallery
Book 1: Fourth Wing
Appearances
Next stop
In Book 1
Places
Meet Dain Aetos in Bookworm
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