Girl Island: The gripping YA adventure that readers are saying is impossible to put down

Girl Island: The gripping YA adventure that readers are saying is impossible to put down

by Kate Castle

4.4 (455)

4.4 stars from 455 reviews


$0.99KU89% off peak

Last checked: May 17, 2026

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Price history: Free $8.99

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Fans of these authors will like this...

  • Suzanne Collins
  • Holly Jackson
  • Natalie D. Richards

Fans of these books will like this...

  • The Hunger Games
  • One of Us Is Lying
  • Lord of the Flies

Perfect for you if...

  • You loved The Hunger Games and want a survival story centred on girls navigating social hierarchies under extreme pressure.
  • You're drawn to character-driven narratives where internal conflicts matter as much as external threats.
  • You enjoy stories that explore toxic femininity and redemption, where enemies might become allies when it counts.

Maybe not for you if...

  • You prefer fast-paced action over character development and introspection.
  • You're looking for romance as a central plot thread rather than a secondary element.
  • You find stories about teenage conflict exhausting or prefer adult protagonists.

About this book

Girl Island by Kate Castle won the Golden Crown Literary Society Award for Debut Novel and Young Adult Fiction. Six teenage girls find themselves stranded on a deserted island after their plane crashes. Seventeen-year-old Ellery, a farm girl who recently won an athletics scholarship to a prestigious school, must navigate survival alongside her schoolmates—including mean girls, the school dork, and her ex-best friend. Removed from civilized society, the group faces questions about class, identity, and toxic femininity as they fight to survive. As the girls struggle for survival, long-buried secrets emerge and each girl's true character is revealed. The novel explores whether friendships can be rekindled and whether Ellery can endure on Girl Island.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$4.50$8.99Jul '21Oct '22Oct '23Oct '25
Free$8.99

Currently on sale at $0.99 — 89% off peak. Price has dropped 14 times over the last 5 years. Goes on sale roughly every 122 days. Typically stays discounted for 12 days.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#1,793#487,993#974,193Jul '21Feb '23Sep '23Apr '26

Currently around #117K in the Kindle store — a niche title. Sales have softened 101% recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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3.5★4.3★5.0★May '23Oct '23Feb '24Sep '24RatingReviews

Currently 4.4★ from 455 reviews

Gaining approximately 5 new reviews per month. Rating has remained stable at 4.4 over the tracking period.

Sale Prediction

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Free$4.50$8.99Jul '21Oct '22Oct '23Oct '25PredictedMay '26

Actual Predicted

This book is currently discounted at $0.99. It typically returns to around $8.99.

Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Kate Castle

1 book on Vagrant Press

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