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Cover of The Deep Dark
Graphic · ages 13–17

The Deep Dark

A Graphic Novel

Written and illustrated by Molly Knox Ostertag

Part of the Molly Knox Ostertag universeOpen the collection

Adults love it tooEndlessly rereadable

A darker, older-teen Molly Knox Ostertag graphic novel with queer romance, secrecy, family pressure, and supernatural dread. It belongs in the database, but it sits closer to YA than cosy middle-grade graphic fiction.

  • Best for13–17
  • FormatGraphic
  • Length480 pp
  • Read aloud~3 hr45 min
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The vibe

What it’s like.

Style

  • Conversational
  • Literary

Tone

  • Dark
  • Suspenseful
  • Bittersweet
  • Thought provoking

Themes

On the pagequeer romance, secret, supernatural darkness, identity, family pressure, small town, monster

Experience meters

Energy3/ 5
Humour2/ 5
Scariness3/ 5
Peril3/ 5
Wonder4/ 5
Cosiness1/ 5
Emotional intensity4/ 5
Conceptual intensity4/ 5

What’s it about?

The story.

Mags lives with a secret that shapes every part of her life. She has friends, work, family responsibilities, and a sharp sense of who she is, but something dark follows her, and keeping it hidden has become exhausting. When a new girl arrives and starts to see through Mags's defences, the story becomes part romance, part supernatural mystery, and part emotionally intense coming-of-age novel. Molly Knox Ostertag uses the graphic-novel form to blend ordinary teenage life with a creeping sense of danger, turning secrecy into something both magical and painfully human. This is a book about desire, shame, self-protection, family loyalty, and the risk of trusting someone with the parts of yourself you have learned to hide.

Fit check

Right for your child?

Where it lands by age

  • 1
  • 3
  • 5
  • 7
  • 9
  • 11
  • 13
  • Best fit · 13–17
  • Read aloud · 13–17
  • Independent · 13–17

Prose load

Moderate

Visual support

Very high

Reluctant-reader friendly

Very

Read-aloud quality

Patchy

Works well for

  • Reluctant readers
Moderate sensitivity2 content warnings

Preview before sharing if a child is sensitive to: scary imagery, mental health.

Bedtime suitability

1 / 5 · Wide awake

Sensitive-child

2 / 5 · Use judgement

Graphic intensity

3 / 5 · Some

Best for

  • Older teen graphic novel
  • Queer romance
  • Dark fantasy
  • Emotionally intense
  • Beautiful but heavy

Avoid if

  • Younger middle grade
  • Bedtime reading
  • Sensitive to scary imagery
  • Wants light comedy

Particularly good for children who are…

  • Anxiety and worry
  • Low self esteem

In the classroom

How it works in school.

A powerful YA graphic novel about secrets, identity and self-acceptance — a strong discussion read for older teens.

Classroom role

  • Discussion and empathy
  • Classroom library

Good for teaching

  • Theme

Supports

A book children love that happens to support school — never a stand-in for the texts a class is taught with. Reviewed for the classroom · June 2026.

Why it lands

Why they love it.

Why kids love it

The specific weight is the monster inside — Mags carrying a secret since she was small, the cost of hiding it adding up, a new girl arriving and starting to see through her defences. The Molly Knox Ostertag YA graphic novel for an older teen with secrets of their own.

  • Being understood finally
  • Transformation
  • Secret skill
  • Surviving danger

Why parents love it

The older Ostertag — YA rather than middle-grade, queer romance and supernatural dread interwoven, secrecy as both magic and emotional exhaustion. Heavier themes handled with care. Strong for the teen ready for a book about desire and shame and self-protection.

  • Great writing
  • Conversation starter
  • Beautiful illustrations

About the author & illustrator

Molly Knox Ostertag.

MK

Molly Knox Ostertag

Writer & illustrator · United States · b. 1991

Molly Knox Ostertag is an American author-illustrator born in 1991, best known for The Witch Boy graphic-novel trilogy (The Witch Boy, The Hidden Witch, The Midwinter Witch) about Aster, a young boy in a magical family where boys are meant to be shape-shifters and girls are meant to be witches, who quietly knows where he belongs anyway. The books handle gender, identity and family expectations with serious emotional intelligence inside a warm magical-realist story. Ostertag also wrote The Girl from the Sea (queer YA selkie graphic novel) and works on the Lumberjanes comics. A core middle-grade graphic-novel author for ages 9–13, particularly important to LGBTQ-inclusive shelves.

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Easier or preparing reads — perfect lead-ins.

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Where to go next…

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Where you’ll find it

On these reading lists.

Buy or borrow

Pick up a copy.

  • Bookshop.org
  • Waterstones
  • Amazon UK
  • Hive
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Last reviewed · May 2026Suggest a correctionHow we recommend

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