The Nightmare's Kiss: a Monster Romance (Monster Research Facility Book 1)

Name: The Nightmare's Kiss: a Monster Romance (Monster Research Facility Book 1)
Price: 1.99 USD
Availability: InStock
Rating: 4.3 (1953 reviews)
Author: Skyla Gray

by Skyla Gray

Dark Romance Romantasy

4.3 (1,953)

4.3 stars from 1,953 reviews. Top 80% of Dark Romance books we track.

$1.99KU50% off peak

Last checked: Jun 27, 2026

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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 enjoy slow-burn romance with genuine tension and danger, where the attraction builds through conversation and vulnerability rather than instalove.
You like monster romance but want something with real psychological depth and a facility setting that feels claustrophobic and morally complicated.
You appreciate horror elements woven through romance, where the creature isn't just a love interest but genuinely unsettling and unknowable at first.

Maybe not for you if...

You need your romance fast-paced with immediate chemistry and clear resolution by the halfway point.
You want purely dark or grimdark content—this balances horror with emotional connection in ways that might feel too hopeful.
You're looking for a standalone that wraps up the world completely; this is book one in a series with its own mythology still being revealed.

About this book

Mara Vance, a psychology graduate, is assigned to study Subject X-13, a shape-shifting shadow creature known as "The Nightmare." Armed with sharp teeth and claws, the creature is both terrifying and intriguing to her. As Mara observes him, she discovers he is far more intelligent than her superiors have indicated, and she begins having vivid dreams about him each night. When dream and reality start to blur, Mara faces a difficult choice: whether to trust the Nightmare enough to set him free, or risk losing him forever. The novel combines romantic and horror elements in a slow-burn, suspenseful narrative. It concludes with a happy ending and can be read as a standalone, though other books in the Monster Research Facility series follow different couples within the same world.

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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 8 times over the last 3 years. Goes on sale roughly every 109 days.

Sales Rank

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

Currently around #32K in the Kindle store — a steady mid-list seller. Sales have softened 52% recently.

Rating & Reviews

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

Currently 4.3★ from 1,953 reviews

Gaining approximately 58 new reviews per month. Steady word of mouth growth. Rating has dipped slightly from 4.4 to 4.3.

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.