One More BookFind a book
Cover of The Aquanaut
Graphic · ages 8–12

The Aquanaut

Written and illustrated by Dan Santat

Top giftableAdults love it tooEndlessly rereadable

Still grieving her father, lost at sea, Sophia mopes around the marine park he built, until an 'aquanaut', a diving suit secretly piloted by four goofy sea creatures, breaks into the lab. Together they set out to free the park's captive animals in a warm, funny, big-hearted graphic novel from Dan Santat.

  • Best for8–12
  • FormatGraphic
  • Length256 pp
  • Read aloud~2 hr
Where to buyPaperback
WaterstonesIn stock
£10.99
Buy
Amazon
See price at Amazon
Buy

Affiliate links — buy through these retailers and we earn a small commission, at no extra cost to you.

The vibe

What it’s like.

Style

  • Comedic
  • Conversational

Tone

  • Adventurous
  • Exciting
  • Heartwarming
  • Bittersweet

Themes

On the pagesea creatures, marine park, grief and loss, animal rescue, conservation

Experience meters

Energy4/ 5
Humour4/ 5
Scariness2/ 5
Peril3/ 5
Wonder4/ 5
Cosiness2/ 5
Emotional intensity4/ 5
Conceptual intensity2/ 5

What’s it about?

The story.

Ever since her father was lost at sea, Sophia has drifted, unhappy and adrift, around Aqualand, the marine theme park her dad and uncle dreamed up together. Then her world turns upside down when an aquanaut, a battered diving suit, breaks into the park's research lab, and Sophia discovers that inside it lives a crew of four gloriously goofy sea creatures piloting the suit as one. As she gets to know her unlikely new friends, Sophia realises that Aqualand has drifted far from her father's vision into something darker, a place that puts profit above the marine life it was meant to celebrate. Determined to put things right, Sophia and the aquanaut crew hatch a plan to free the park's captive animals before it's too late. From Caldecott Medalist and National Book Award winner Dan Santat comes a whimsically adventurous, deeply felt graphic novel about grief, family, friendship and standing up for the natural world.

Fit check

Right for your child?

Where it lands by age

An adventure graphic novel for 8-12s that reads independently and hooks reluctant readers with its humour and art. It touches on a parent's death and animal captivity, so a sensitive reader may want an adult nearby, and its craft gives it genuine adult appeal.

  • 1
  • 3
  • 5
  • 7
  • 9
  • 11
  • 13
  • Best fit · 8–12
  • Read aloud · 7–10
  • Independent · 8–12

Prose load

Light

Visual support

Very high

Reluctant-reader friendly

Very

Read-aloud quality

Workable

Works well for

  • Gift-buying
  • Reluctant readers
Moderate sensitivity3 content warnings

Preview before sharing if a child is sensitive to: grief, death of parent, animal harm.

Bedtime suitability

2 / 5 · Better outside bedtime

Sensitive-child

3 / 5 · Mostly fine

Graphic intensity

2 / 5 · Mild

Best for

  • Reluctant readers
  • Animal lovers
  • Graphic novel fans
  • Environmental themes

Avoid if

  • Sensitive to parent loss
  • Wants light fun

Particularly good for children who are…

  • Bereavement

Why it lands

Why they love it.

Why kids love it

The reveal that the aquanaut is secretly steered by four hilarious sea creatures working together is a brilliant surprise, and their plan to free the trapped animals turns into a proper adventure. It's funny and exciting, but Sophia's story about missing her dad gives it real feeling too.

  • Talking to animals
  • Making a difference
  • Adventure and freedom
  • Surviving danger

Why parents love it

Dan Santat wraps big themes, losing a parent, grief, and how we treat animals, inside a funny, gorgeously drawn adventure that never feels heavy. The heavy visual support makes it a magnet for reluctant readers, and the environmental heart gives you plenty to talk about together.

  • Beautiful illustrations
  • Shared humour
  • Conversation starter
  • Great writing

About the author & illustrator

Dan Santat.

DS

Dan Santat

Writer & illustrator · United States · b. 1975

Dan Santat is an American author-illustrator born in 1975, best known for The Adventures of Beekle: The Unimaginary Friend (2014, Caldecott Medal) and the National-Book-Award-winning memoir graphic novel A First Time for Everything. Santat's body of work includes picture books (After the Fall, Drawn Together with Minh Lê), illustrator credits across many contemporary picture books, and the Sidekicks graphic novel. His style is bright, character-driven and emotionally precise, with strong skill at depicting children in moments of big feeling. A core contemporary American picture-book and graphic-novel maker for ages 4–12.

More from Dan Santat

If you liked this

Three ways out of this book.

If you liked this, try…

Lateral matches. Same shelf, different texture.

Aquicorn Cove
Katie O'Neill
Aquicorn Cove

by Katie O'Neill

Sea Sirens
Amy Chu
Sea Sirens

by Amy Chu

Last reviewed · July 2026Suggest a correctionHow we recommend

More ways to wander the room