Impact (Outer Earth Book 3)

Name: Impact (Outer Earth Book 3)
Price: 1.99 USD
Availability: InStock
Rating: 4.4 (19 reviews)
Author: Rob Boffard

by Rob Boffard

Thriller Science Fiction

4.4 (19)

$1.99Deal80% off peak

Last checked: Jul 3, 2026

Price history: $0.50 – $9.99

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Price range: $0.50 – $9.99

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Perfect for you if...

You loved the first two Outer Earth books and need to know how Riley's story ends.
You enjoy high-stakes survival thrillers where the protagonist has to outthink hostile environments and other people.
You like science fiction that keeps the focus tight on character and action rather than lengthy world-building exposition.

Maybe not for you if...

You prefer slower-paced narratives with time for reflection and relationship development.
You're looking for standalone sci-fi and don't want to commit to a trilogy.
You need books with extensive world-building that explains the science and history behind the setting.

About this book

Impact concludes the Outer Earth trilogy with a space-based thriller. A signal from Earth is detected, suggesting the planet may harbor survivors with resources despite being thought uninhabitable. This discovery raises the possibility of a human future on Earth. Riley Hale finds herself aboard a spaceship with a group of terrorists planning to descend through Earth's atmosphere and crash-land on the surface. When the re-entry fails, Riley is separated from her companions Prakesh and Carver, stranded hundreds of miles away in a barren landscape. She must rely on her skills to survive while discovering that conditions on Earth are far different from what anyone expected.

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Price History

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

$0.50 – $9.99

Currently on sale at $1.99 — 80% off peak. Price has dropped 20 times over the last 6 years. Goes on sale roughly every 105 days.

Sales Rank

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

Currently around #447K in the Kindle store — a niche title.

Rating & Reviews

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

Currently 4.4★ from 19 reviews

Review activity has been quiet recently. Rating has climbed from 4.3 to 4.4. Recent readers are rating it higher.

Sale Prediction

Actual Predicted

This book is currently discounted at $1.99. It typically returns to around $9.99.

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.