Regular price: $19.95

Free with 30-day trial
Membership details Membership details
  • A 30-day trial plus your first audiobook, free
  • 1 credit/month after trial – good for any book, any price
  • Easy exchanges – swap any book you don’t love
  • Keep your audiobooks, even if you cancel
  • After your trial, Audible is just $14.95/month
Select or Add a new payment method

Buy Now with 1 Credit

By confirming your purchase, you agree to Audible's Conditions of Use and Amazon's Privacy Notice. Taxes where applicable.

Buy Now for $19.95

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

Publisher's Summary

Geologist Alex Cave receives an urgent message about an unusual geologic event in Iceland. Giant globules of molten rock are floating up out of an ancient glacier.
Alex and his friend Okana descend deep into the lava tube of a dormant volcano and discover a 180-million year old alien artifact of incredible power. But before he can take it to a safe location, it is stolen by Janice Sloan, a ruthless woman dealing in stolen advanced technology. When she turns it on, the device begins changing the orbit of the moon and dragging satellites from the sky, but it won't shut down.
Alex begins a desperate race to find the artifact while dealing with his live-in girlfriend, Fala, who thinks he's just an adventure junkie, leaving her and her 10-year old daughter on the spur of the moment without any explanation or concern for her feelings. Because of the clandestine nature of the operation, it's ripping his heart out that he can't tell her he is on a top-secret mission to save the lives of everyone on the planet.
Alex learns that even if he finds the artifact, he needs a key taken by Sloan to shut it down, but she is determined to acquire a vast sum of money for her efforts. She kidnaps Fala and her daughter as leverage to keep Alex from pursuing her, and will contact him in two weeks with instructions on where to transfer two million dollars into a numbered account in exchange for his family and the key.
And as if that wasn't bad enough, a massive emerald asteroid with a core of solid gold is on a collision course with Earth and will impact in six days. In order to change its trajectory, he needs the artifact and the key, but he's running out of time to find Sloan and his family. Can Alex find a way to save his loved ones and civilization from extinction?
©2015 James M. Corkill (P)2017 James M. Corkill
Show More Show Less

Customer Reviews

Most Helpful

By Betababe on 07-13-17

Man against the Planets

This is the fourth in the series which I've had the pleasure to listen to [AUDIO] and it is a rootin', tootin' hoot of an adventure, disaster, sci-fi thriller finding new potential apocalypse featuring excellent narration which enhances the drama. I'm surprised these haven't already been picked up for exploitation on the silver screen as our larger than life hero survives inner and outer space to save the day. Now THAT is not a spoiler--this is a series, after all!

Read More Hide me

1 of 1 people found this review helpful


By Mike on 07-06-17

Another save the day adventure by Alex Cave!

If you could sum up Gravity in three words, what would they be?

Alex the Man!

What did you like best about this story?

The overall action and suspense!

Which scene was your favorite?

Where the uncle is working feverishly to save the marina.

Was there a moment in the book that particularly moved you?

Where Alex and O'Connell find out their loved ones are still alive!

Any additional comments?

I hope there are additional books coming in this series.

Read More Hide me

1 of 1 people found this review helpful

See all Reviews
© Copyright 1997 - 2017 Audible, Inc