Learn more
These promotions will be applied to this item:
Some promotions may be combined; others are not eligible to be combined with other offers. For details, please see the Terms & Conditions associated with these promotions.
Your Memberships & Subscriptions

Download the free Kindle app and start reading Kindle books instantly on your smartphone, tablet, or computer - no Kindle device required.
Read instantly on your browser with Kindle for Web.
Using your mobile phone camera - scan the code below and download the Kindle app.
Follow the author
OK
Proving Grounds (On Dangerous Grounds Book 2) Kindle Edition
Annie wants to live. She wants to go home. In order to return to Earth, she must first prove to the cold observers watching her that she is capable of surviving another journey through the hellscape she only narrowly escaped once before. She must prove to the Apex that she, and perhaps the entire human race, should continue to exist.
- LanguageEnglish
- Publication dateDecember 15, 2022
- File size2.9 MB
Shop this series
See full series- Kindle Price:$13.97By placing your order, you're purchasing a license to the content and you agree to the Kindle Store Terms of Use.
Shop this series
This option includes 3 books.
Customers also bought or read
- Stranded (Starship of the Ancients Book 1): A Space Opera AdventureJust releasedKindle Edition$4.99$4.99
Customers who bought this item also bought
Product details
- ASIN : B0BM6K541T
- Publisher : Deep Dark Thoughts Publications LLC (December 15, 2022)
- Publication date : December 15, 2022
- Language : English
- File size : 2.9 MB
- Simultaneous device usage : Unlimited
- Text-to-Speech : Enabled
- Screen Reader : Supported
- Enhanced typesetting : Enabled
- X-Ray : Not Enabled
- Word Wise : Enabled
- Print length : 336 pages
- Page numbers source ISBN : 1952630088
- Best Sellers Rank: #1,422,879 in Kindle Store (See Top 100 in Kindle Store)
- #6,837 in First Contact Science Fiction (Books)
- #7,128 in First Contact Science Fiction eBooks
- #11,396 in Dark Fantasy Horror
- Customer Reviews:
About the author

G. Allen Wilbanks, an internationally best-selling author on Amazon, is a retired police officer living in Northern California. For twenty-five years he wrote collision and crime reports to pay the bills while writing short fiction at nights to keep himself sane. In 2016, he retired from real life to live in a fantasy world of his own making full time.
He is a member of the Horror Writers Association (HWA) and has had over 200 short stories published in Deep Magic, Daily Science Fiction, Mythic, The Colored Lens, as well as many other magazines, e-zines and anthologies from all over the world.
In addition to short stories, G. Allen is the author of several novels, including the Amazon #1 best sellers, A Life of Adventure, Deadly Seven, and Testing Grounds. He recently concluded his science fiction trilogy, On Dangerous Grounds, with the Hunting Grounds, and he is currently hard at work on new series of novels tentatively titled Dead Town.
For additional information, please check out his website, and feel free to say hi in the comments section.
Customer reviews
- 5 star4 star3 star2 star1 star5 star63%28%9%0%0%63%
- 5 star4 star3 star2 star1 star4 star63%28%9%0%0%28%
- 5 star4 star3 star2 star1 star3 star63%28%9%0%0%9%
- 5 star4 star3 star2 star1 star2 star63%28%9%0%0%0%
- 5 star4 star3 star2 star1 star1 star63%28%9%0%0%0%
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonReviews with images

The Game Continues
Top reviews from the United States
There was a problem filtering reviews. Please reload the page.
- Reviewed in the United States on January 31, 2023Annie Carpenter returns with her feistiness to bring another group through the Apex training grounds. (Aliens who have kidnapped random humans to test them.) It’s up to her to keep nine humans selected for testing alive. But there are too many uncooperative people in her group. Do humans deserve to exist? A whole new slew of games and puzzles where one wrong move or one wrong guess means life or death.
G. Allen Wilbanks brings it again. Sometimes being a leader means allowing people to do what they do best. I can’t wait for volume three.
Annie Carpenter returns with her feistiness to bring another group through the Apex training grounds. (Aliens who have kidnapped random humans to test them.) It’s up to her to keep nine humans selected for testing alive. But there are too many uncooperative people in her group. Do humans deserve to exist? A whole new slew of games and puzzles where one wrong move or one wrong guess means life or death.
G. Allen Wilbanks brings it again. Sometimes being a leader means allowing people to do what they do best. I can’t wait for volume three.
Images in this review