Room 21: A totally addictive psychological thriller with twists that will make you gasp

Name: Room 21: A totally addictive psychological thriller with twists that will make you gasp
Price: 1.99 USD
Availability: InStock
Rating: 4.2 (3325 reviews)
Author: Jessica Huntley

by Jessica Huntley

Mystery Thriller Thriller

4.2 (3,325)

4.2 stars from 3,325 reviews. Top 67% of Mystery Thriller books we track.

$1.99KU50% off peak

Last checked: Jul 1, 2026

Read free with Kindle Unlimited

Price history: $0.99 – $3.99

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Price range: $0.99 – $3.99

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Perfect for you if...

You love psychological thrillers where the protagonist is trapped by circumstances and secrets stack up faster than they can escape them.
You're drawn to unreliable narrators and stories that make you question what's actually happening versus what you're being told.
You want a page-turner that moves fast enough to read in one sitting, with twists that genuinely blindside you rather than being signposted chapters ahead.

Maybe not for you if...

You prefer character-driven literary fiction where the internal landscape matters more than plot mechanics and shocking reveals.
You're sensitive to content involving exploitation or abuse, as this deals with darker themes involving power imbalances.
You like your thrillers grounded in procedural realism rather than high-concept setups that stretch plausibility.

About this book

Kimberley is twenty-five years old and works as a senior housekeeper at a prestigious London hotel. She has epilepsy and a seizure alert dog named Muffin. When Jennifer Clifton, a wealthy and powerful guest, offers Kimberley a job at her exclusive hotel in the Scottish Highlands, it seems like an opportunity for a better life—with one condition: she must not open the door to Room 21. Once at the new hotel, Kimberley begins to notice disturbing details. The guests unsettle her, staff members whisper in private, and Room 21 exerts a strange pull on her despite her promise to stay away. What appeared to be her dream job becomes a nightmare as she discovers something is deeply wrong in the hotel. The book contains dark and disturbing themes.

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Price History

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

$0.99 – $3.99

Currently on sale at $1.99 — 50% off peak. Price has dropped 2 times over the last 14 months. Goes on sale roughly every 232 days. Typically stays discounted for 41 days.

Sales Rank

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

Currently around #34K in the Kindle store — a steady mid-list seller.

Rating & Reviews

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

Currently 4.2★ from 3,325 reviews

Gaining approximately 257 new reviews per month. Reader interest is accelerating. Rating has dipped slightly from 4.7 to 4.2.

Sale Prediction

Actual Predicted

This book is currently discounted at $1.99. It typically returns to around $3.99.

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.