Discover new selections
Kindle Unlimited
Unlimited reading. Over 4 million titles. Learn more
OR
$4.99 with 67 percent savings
Print List Price: $14.99

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.

You've subscribed to ! We will preorder your items within 24 hours of when they become available. When new books are released, we'll charge your default payment method for the lowest price available during the pre-order period.
Update your device or payment method, cancel individual pre-orders or your subscription at
Your Memberships & Subscriptions
Kindle app logo image

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.

QR code to download the Kindle App

Follow the author

Something went wrong. Please try your request again later.

Proving Grounds (On Dangerous Grounds Book 2) Kindle Edition

4.5 out of 5 stars 16 ratings

Unable to return home, Annie Carpenter is trapped in an artificial world created by the Apex. Her alien abductors have given her two choices: lead a new group of human subjects through the death maze of the testing grounds… or die.

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.
Unwell Hydration from Alex Cooper
Hydrate & focus with every sip Shop now

Shop this series

 See full series
There are 3 books in this series.
This option includes 3 books.

Customers also bought or read

Loading...

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
  • Customer Reviews:
    4.5 out of 5 stars 16 ratings

About the author

Follow authors to get new release updates, plus improved recommendations.
G. Allen Wilbanks
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

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

4.5 out of 5 stars
16 global ratings

Review this product

Share your thoughts with other customers
The Game Continues
5 out of 5 stars
The Game Continues
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.
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

  • Reviewed in the United States on January 31, 2023
    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.
    Customer image
    5.0 out of 5 stars
    The Game Continues

    Reviewed in the United States on January 31, 2023
    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
    Customer image

Report an issue


Does this item contain inappropriate content?
Do you believe that this item violates a copyright?
Does this item contain quality or formatting issues?