Ayoh - Shop now
$0.00 with 100 percent savings
Digital List Price: $9.99

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 authors

See all
Something went wrong. Please try your request again later.

Call of Courage: 7 Novels of the Galactic Frontier Kindle Edition

4.2 out of 5 stars 923 ratings

Some are called by duty. Some are called by adventure. All answer the call of courage.

Jump into seven full-length novels exploring the limits of space, science, and courage. Aliens, artificial intelligence, rogue governments, and galactic frontiers--you’ll find them all here.

Heed the call. Download this collection of series starters today!

Archangel Down by C. Gockel
Commander Noa Sato doesn’t believe in aliens. She’s wrong. In the face of genocide she must hatch a daring plan with a ragtag crew to save the lives of millions—and her own. Every step of the way she is haunted by the final words of a secret transmission: The archangel is down.

Anti Life by Allen Kuzara
The opposite of life isn't death; it's something far worse. Mission colonel John Alvarez must carry out one last mission, a rescue attempt. Unknown to Alvarez, however, is the hidden threat that awaits him, one that—if he cannot stop it—will doom humanity to a fate worse than death.

Allies and Enemies: Fallen by Amy J. Murphy
Born into service of the Regime, Commander Sela Tyron is about as subtle as a hammer. To hammers, any problem can look like a nail. But things aren’t always that easy—especially when Sela is forced to choose between the only life she's ever known and rescuing a trusted comrade.

Traveler in the Dark by Deirdre Gould
Sixteen centuries ago, they fled Earth. They've never walked on soil, felt rain, or breathed unrecycled air. At last, they sent exploratory mission to a new planet. It's ideal... but they are not alone. Struggling for survival, they must make a choice. Sacrifice another species or accept their own extinction.

Breakers of the Dawn by Zachariah Wahrer
Humanity has fallen from its once majestic place amongst the stars. Desperate for resources, they seize every available planet, exterminating their alien inhabitants. Sent to subdue an uprising, a government operative unearths an alien relic. The strange device promises extraordinary power, but can he trust it?

The Backworlds by M. Pax
After the war with the Foreworlds, competition among the Backworlds is fierce. Pickings are scant enough that Craze’s father boots him off the planet. Cut off from everyone he knows with little knowledge of the worlds beyond, Craze must find a way to survive and get his revenge.

Sky Hunter by Chris Reher
Terrorists plot to destroy a space elevator on a remote planet. Nova Whiteside, Air Command pilot, is caught behind enemy lines in a bloody uprising. The treacherous and illicit schemes she uncovers there make her question who, really, is the enemy.
Unwell Hydration from Alex Cooper
Hydrate & focus with every sip Shop now

Product details

  • ASIN ‏ : ‎ B07Z5K8BKK
  • Publisher ‏ : ‎ Amazon Digital Services
  • Accessibility ‏ : ‎ Learn more
  • Publication date ‏ : ‎ October 15, 2019
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 3.3 MB
  • Simultaneous device usage ‏ : ‎ Unlimited
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 1482 pages
  • Page Flip ‏ : ‎ Enabled
  • Customer Reviews:
    4.2 out of 5 stars 923 ratings

About the authors

Follow authors to get new release updates, plus improved recommendations.

Customer reviews

4.2 out of 5 stars
923 global ratings

Review this product

Share your thoughts with other customers

Customers say

Customers find this collection of novels engaging and well-written, with interesting and well-developed characters. Moreover, they appreciate the series introductions and consider it a fantastic set of reads. However, the editing quality receives mixed feedback, with some customers saying it's done well enough.

AI-generated from the text of customer reviews

15 customers mention "Readability"15 positive0 negative

Customers find the book series highly readable, describing it as a fantastic set of fun reads.

"...And I was pleasantly surprised! A good read throughout, and not a dud in the collection...." Read more

"...I do urge you to grab C. Gockel's series Archangel series - it's a fun series!..." Read more

"Thoroughly enjoyed reading this awesome series of different books. Now that I've finished it want to continue all 7 series. Thank you so much." Read more

"...and the writers have created stories which will be of interest to many readers." Read more

7 customers mention "Storytelling"7 positive0 negative

Customers enjoy the storytelling in the book, with one customer noting the great exposure to all the authors.

"...I like the fact that not everyone makes it. The author does a nice job. I would definitely read more. Good job." Read more

"...You need to grab this boxed set! It has great stories which are first in series... and I see a few series I need to be reading next!..." Read more

"The first stories were OK. The last 3 were meh. I do not recommend this book at all and will not continue reading any of them" Read more

"So many good starts to stories, but with this many reviews to write it would be very hard to give an honest review of individual stories...." Read more

5 customers mention "Series introduction"5 positive0 negative

Customers appreciate the series introduction, with one mentioning it's an awesome book to start different series and another noting its great concepts.

"...You need to grab this boxed set! It has great stories which are first in series... and I see a few series I need to be reading next!..." Read more

"This is a group of books - introductions to series, actually - from different authors but in genres that link them together...." Read more

"With only one exception these books are definitely welcome introductions to new series. (I did not care for Breakers of the Dawn at all)..." Read more

"Awesome book to start different series..." Read more

3 customers mention "Character development"3 positive0 negative

Customers appreciate the well-developed characters in the book.

"...Each book is different with interesting well developed characters lots of action, misdirection, and violence leading to each conclusion...." Read more

"...too many curses for my taste but at least they came sporadic and in character and not at all overly gratuitous...." Read more

"...The D. Gold book characters have vivid internal lives, well drawn personalities, she's got something going. It's the best of the lot...." Read more

3 customers mention "Collection"3 positive0 negative

Customers praise the collection, with one noting it's not a dud, and another describing it as uniformly sterling.

"...And I was pleasantly surprised! A good read throughout, and not a dud in the collection...." Read more

"...So rare to find such a uniformly sterling collection. I highly recommend it." Read more

"This Collection is Great!!..." Read more

6 customers mention "Editing quality"3 positive3 negative

Customers have mixed opinions about the editing quality of the book.

"...stories in this collection wrap things up satisfactorily, and are done well enough that -- even though, again, I'm not really much of a sci-fi..." Read more

"...Not the best I've read but for sure it is very close to it...." Read more

"...The author does a nice job. I would definitely read more. Good job." Read more

"You could struggle through these but all suffer from a lack of a quality editing. Misspelling, misuse, poor structure, and more...." Read more

Top reviews from the United States

  • Reviewed in the United States on December 12, 2020
    Even though I'm not much of a sci-fi reader, I picked this up to add to my "to read" collection to help keep me occupied through this Covid thing. I knew it was a collection of "book 1 of whatever" books. It cost nothing, so what the hey.

    And I was pleasantly surprised! A good read throughout, and not a dud in the collection. Each story finishes, no dumb cliffhangers obviously designed to force you to buy the next book to resolve the main conflict in the book (something crappy indie authors employ, which, btw, is a guaranteed way to get me to never buy anything from that author ever).

    Of course, the umbrella series story has yet to play out in other books, but that's obvious and to be expected. But the stories in this collection wrap things up satisfactorily, and are done well enough that -- even though, again, I'm not really much of a sci-fi reader -- with a few of these books, I'm actually considering continuing on with their respective series installments to see how things turn out.

    Good stuff!
    8 people found this helpful
    Report
  • Reviewed in the United States on February 11, 2023
    A few grammatical errors, but nothing serious. I like the fact that not everyone makes it. The author does a nice job. I would definitely read more. Good job.
    One person found this helpful
    Report
  • Reviewed in the United States on November 29, 2019
    I bought the boxed set because I love C. Gockel's writing, and I loved Archangel Down (besides her wonderful Loki series I Bring the Fire). Based on the excellence of her writing, I assume the rest of the books will be great as well. So far, I am not disappointed!

    You need to grab this boxed set! It has great stories which are first in series... and I see a few series I need to be reading next! I do urge you to grab C. Gockel's series Archangel series - it's a fun series! Once you get a glimpse into this series, you will want to know what happens next!
    5 people found this helpful
    Report
  • Reviewed in the United States on September 4, 2021
    The first stories were OK. The last 3 were meh. I do not recommend this book at all and will not continue reading any of them
    One person found this helpful
    Report
  • Reviewed in the United States on September 13, 2023
    This is a free box 📦 set that is free on Amazon as a e-book of seven novels. I picked this up about 2.5 years ago.

    Each book is different with interesting well developed characters lots of action, misdirection, and violence leading to each conclusion. As with all box 📦 sets you will like some better than others but that is normal.

    I listened 🎶 to three of these novels as individually novel, one, did and seven. So I only had to listen to four novels to finish this box 📦set.

    I would recommend this box 📦 set to 👍 readers of fantasy futuristic space novels 👍🔰. 2023 👒😀☺😈
  • Reviewed in the United States on January 29, 2024
    Thoroughly enjoyed reading this awesome series of different books. Now that I've finished it want to continue all 7 series. Thank you so much.
  • Reviewed in the United States on September 2, 2020
    If your looking for a good set of sci-fi books then look no further. Not the best I've read but for sure it is very close to it. A few too many curses for my taste but at least they came sporadic and in character and not at all overly gratuitous. I recommend this for the more mature readers, not offended by an off color phrase or word or two.
    One person found this helpful
    Report
  • Reviewed in the United States on January 4, 2021
    So many good starts to stories, but with this many reviews to write it would be very hard to give an honest review of individual stories. Overall there are many of these stories that readers will want to follow up and read the next installments. Overall the stories are imaginative and the writers have created stories which will be of interest to many readers.
    One person found this helpful
    Report

Top reviews from other countries

  • PAUL MITCHELL
    5.0 out of 5 stars Great story
    Reviewed in the United Kingdom on June 8, 2023
    Loved this book already bought rest of the series. Very enjoyable. Couldn't put it down and can't wait to continue.
  • Robert
    5.0 out of 5 stars Good mix of books
    Reviewed in Germany on June 1, 2020
    Great action in all of the books including a shallow and at the end quite merciless love story in the last one.
  • Adele H.
    2.0 out of 5 stars Book for teens
    Reviewed in Canada on January 9, 2021
    Everything in this series has been previously said and done. I was determined to get through it but it was painful. Not a good book for a seasoned reader.
  • Gibboo
    4.0 out of 5 stars Good Sunday Afternoon Read
    Reviewed in Australia on January 13, 2023
    Perfect for a Good Sunday Afternoon Read, one of the better books Novel sets, I've read in awhile.
  • Ian Titler
    4.0 out of 5 stars Assorted stories
    Reviewed in the United Kingdom on March 6, 2020
    Several series hear that I've been reading, but for reasons I can't put my finger on, as a whole, I struggled with it. Not sure why, I was feeling unwell at the time, reading was tiring me and giving me a headache. All good stories, just couldn't feel a connection.

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?