The Shackleton Signal Audiobook By Joshua T. Calvert cover art

The Shackleton Signal

 Preview
LIMITED TIME OFFER

3 months free
Try for $0.00
Offer ends July 31, 2025 at 11:59PM PT.
Pick 1 audiobook a month from our unmatched collection.
Listen all you want to thousands of included audiobooks, Originals, and podcasts.
Access exclusive sales and deals.
Premium Plus auto-renews for $14.95/mo after 3 months. Cancel anytime.

The Shackleton Signal

By: Joshua T. Calvert
Narrated by: Gary Tiedemann
Try for $0.00

$0.00/mo. after 3 months. Offer ends July 31, 2025 at 11:59PM PT. Cancel anytime.

Buy for $33.90

Buy for $33.90

Confirm purchase
Pay using card ending in
Switch payment method
By confirming your purchase, you agree to Audible's Conditions of Use, License, and Amazon's Privacy Notice. Taxes where applicable.
Cancel

In the eternal darkness of the moon, something is calling.

When NASA's Sentinel I satellite detects an impossible reflection and a mysterious signal from Shackleton Crater, the world is thrown into chaos. The discovery points to one chilling truth: an alien artifact lies hidden beneath the lunar surface—and it wants to be found. As China scrambles to exploit the revelation, a new moon race ignites, pushing humanity to the brink.

Thrust into the center of the storm, NASA astronaut Charlie Reid must navigate a volatile mission where science, survival, and military might collide. With the fate of humanity hanging in the balance, the question remains: what will they find—and will we survive it?

The race for the future has begun. And the prize may cost us everything.

©2024 Joshua T. Calvert (P)2025 Podium Audio First Contact Hard Science Fiction Science Fiction Space Exploration Survival Thought-Provoking Military
All stars
Most relevant  
I couldn't stop listening to this book. The story grabbed me and demanded my attention--the most enjoyable storyline was filled with a cast of interesting, believable characters. The narration was terrific--very compelling. The science was interesting and was woven skillfully into a dynamic, fast-paced plot.
I strongly recommend this most entertaining book--it's a must for sci-fi fans!

Entertaining True Science Fiction

Something went wrong. Please try again in a few minutes.