One Dark Spark (Accidental Alchemy Book 1)

Name: One Dark Spark (Accidental Alchemy Book 1)
Availability: InStock
Rating: 4.2 (849 reviews)
Author: Heather Hildenbrand

by Heather Hildenbrand

Romantasy

4.2 (849)

4.2 stars from 849 reviews. Top 92% of Romantasy books we track.

Published by B.A.D. PublishingPublished 2023-01-01

FreeFree100% off peak

Last checked: Jun 10, 2026

Price history: Free – $5.99

Buy now — it's free!

Price range: Free – $5.99

Buy on Amazon - Free

0 readers are tracking this book's price

Fans of these authors will like this...

Colleen Hoover
Sarah J. Maas
Jennifer L. Armentrout

Fans of these books will like this...

A Court of Thorns and Roses
Radiance
From Blood and Ash

Perfect for you if...

You love paranormal romance with genuine chemistry and banter, especially when one half is a grumpy, powerful love interest with secrets.
You're drawn to magical settings with rules and stakes, like a secret library where the stories inside are dangerously real.
You want a series starter that balances steamy romance with plot twists and actual danger rather than just longing glances.

Maybe not for you if...

You prefer slow-burn romance where the attraction takes time to develop rather than immediate, intense chemistry.
You're looking for high-fantasy world-building over character-driven paranormal stories set in modern, contained spaces.
You want a standalone rather than a series commitment, or you're not interested in cliffhangers that demand the next book.

About this book

An intern at the world's only supernatural library is responsible for ensuring that nothing inside the books escapes. One rainy afternoon, after consuming too much pumpkin spice, she accidentally conjures a literal book boyfriend and frees Aries, the king of all dragons. Aries embodies fire in both literal and figurative ways—possessing the physical attractiveness described as well as the ability to breathe fire and generate dangerous heat. The attraction between them is undeniable, but so is the danger. The librarian has unleashed more than just the dragon king; something else now stalks the library's stacks. With a villain now in play and the library's stories holding real and dangerous power, the pair must find a way to fix what was broken, or there will be no happy ending for either of them.

Get the best deal every time

We track price drops, sale patterns, and predict when this book will go on offer next.

Price History

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

Free – $5.99

Currently free. Price has dropped 6 times over the last 23 months. Goes on sale roughly every 110 days.

Sales Rank

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

Currently around #18K in the Kindle store — a steady mid-list seller. Sales have softened 38% recently.

Rating & Reviews

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

Currently 4.2★ from 849 reviews

Gaining approximately 30 new reviews per month. Steady word of mouth growth. Rating has dipped slightly from 4.7 to 4.1.

Sale Prediction

Actual Predicted

This book is currently free. Grab it while you can.

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.