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Publisher's Summary

In 1984 a doomsday vault was constructed on a remote island in the Arctic Ocean. Its purpose was to preserve Earth's genetic history in the event of a global catastrophe. Now, decades later, a second vault has been uncovered. This one resting where no one ever expected. And the problem is, it's not ours. 

Yet even more curious than the vault itself is what lies inside. Seeds. Millions of seeds. Each with a genetic embryo untouched and perfectly preserved. Waiting. No one knows who built it. Or when. 

What we have managed to figure out is that whoever it was traveled an immense distance. For the sole purpose of hiding their genetic blueprints on Earth. But why? 

Now a small group of marine biologists and navy investigators have been assigned to find out. Before anyone else does. But Alison Shaw and John Clay are not prepared for what they are about to uncover. Beginning with the truth behind our own evolution.

©2015 Michael C. Grumley (P)2018 Michael C. Grumley

What members say

Average Customer Ratings

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  • Overall
    5 out of 5 stars
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    5 out of 5 stars

This series just keeps getting better and better!

Strongly recommend this book series. Once you read the first book, "Breakthrough", you may want to have each subsequent book available on your Kindle or audiobooks, or as a hard copy, because you will want to keep reading! These books, which are sequential, will attract anyone who enjoys intelligent, well written novels, with a dose of science, interspecies communication, military operations (with Navy SEALs!), a touch of romance, and of course, implications regarding alien civilizations. You will not regret getting hooked on this "Breakthrough" series!

4 of 4 people found this review helpful

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    4 out of 5 stars
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    4 out of 5 stars

Sci-fi action and adventure...

Catalyst is a very good addition to the BREAKTHROUGH series. I must caution any new listeners to this series, although each new book has it's own unique plot, each book uses events and information from the previous books to add dimension to the new book. Relationships between characters also builds from one to the next.
In this book the protagonists are trying to keep what amounts to the fountain of youth (only on plant form) locked away from human reach. The people who are after it are not morally or ethically people who would use it's healing abilities for human good but rather for their own gain.
This book has an abrupt ending and leaves you with a major cliffhanger and an introduction to the next book in the series (RIPPLE).
Interesting, far fetched and thoroughly entertaining.
Scott Brick as always does an outstanding job narrating.
HIGHLY RECOMMENDED
If you found this review helpful please indicate so.
Thank You.

7 of 8 people found this review helpful

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    5 out of 5 stars
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MUST READ!!

The Breakthrough series has left me wanting more, and Catalyst was no exception!! My favorite so far, Catalyst was fast paced and intriguing...I couldn’t stop listening!! Scott Brick never disappoints with his delivery, and adds another dimension to the listening experience! This series doesn’t disappoint!

2 of 2 people found this review helpful

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The hits just keep coming!

Another great chapter in this saga. This story continues to grow and get even more interesting, and the character development is deep enough that I almost feel I know each one.
Scott Brick also does a fantastic job of bringing these characters to life and passing the emotion to the listener.
Great book!

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Great series!

Oh, so many fascinating connections to be made in the next book(s)! We are more than ready for Ripple to be available in Audible format. Keep ‘em coming!

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Amazing

If you’re looking for a well written story this is it. It takes about 5-10 chapters on the first book to get all the character and story development in but it’s definitely worth it!!

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These series need to be a series or movie.

I love how creative these series is. I love that you feel like it the story could be really.

  • Overall
    5 out of 5 stars

WOW!

What about the four Can't wait for 4. Went one through three in succession great mixture of science fiction and reality in today's world high-tech fast-paced adventure super job.

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Officially Sucked In

Truth be told, this is the first “sci-if” book I have read - ahem- I mean series. The Breakthrough had an exceptional way of introducing us to some great characters and tug at our hearts with the concept of communicating with dolphins. While “reading” Leap (second book in the series) you begin to bond with the characters and feel like you are in this journey with them. Never mind how you feel about any of them by the time you’re reading Catalyst- you know them, and can anticipate their reactions (you think).

These books are the perfect mix of drama, mystery, action, and sci-fi in a way that makes it seem plausible.

I’ll leave you now... I’m about to begin with Ripple!

  • Overall
    5 out of 5 stars

Breakthrough Series.


This series is one of the best I have heard in along time. Ranks with Clusser, Tolkin, Clancy, and and Herbert.

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  • Luke
  • 06-20-18

Wow, even better than the first two

I really enjoyed the first two books in the series. I was constantly captivated by the surprising twist and turns that I never expected or saw coming. While I was looking forward to this next chapter, I didn't expect so much suspense and mystery. There's a lot of refreshing ideas and unique takes on story that mixes with real world current day events. This was a really stellar read and has me chomping at the bit for the next book to come out. I can't wait to find out what happens next!