Listen free for 30 days

Preview
  • Sierra Six

  • Gray Man, Book 11
  • Written by: Mark Greaney
  • Narrated by: Jay Snyder
  • Length: 15 hrs and 58 mins
  • 4.8 out of 5 stars (269 ratings)

Pick 1 audiobook a month from our unmatched collection.
Listen all you want to thousands of included audiobooks, Originals, and podcasts.
Premium Plus auto-renews for $14.95/mo + applicable taxes after 30 days. Cancel anytime.

Sierra Six

Written by: Mark Greaney
Narrated by: Jay Snyder
Try for $0.00

$14.95 a month after 30 days. Cancel anytime.

Buy Now for $43.80

Buy Now for $43.80

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

Publisher's Summary

It's been years since the Gray Man's first mission, but the trouble's just getting started in the latest entry in the number one New York Times best-selling series.

Before he was the Gray Man, Court Gentry was Sierra Six, the junior member of a CIA action team.

In their first mission, they took out a terrorist leader, at a terrible price. Years have passed. The Gray Man is on a simple mission when he sees a ghost: the long-dead terrorist, but he's remarkably energetic for a dead man.

A decade of time hasn't changed the Gray Man. He isn't one to leave a job unfinished or a blood debt unpaid.

©2022 Mark Greaney Books LLC (P)2022 Audible, Inc.
activate_Holiday_promo_in_buybox_DT_T2

What listeners say about Sierra Six

Average Customer Ratings
Overall
  • 5 out of 5 stars
  • 5 Stars
    222
  • 4 Stars
    41
  • 3 Stars
    4
  • 2 Stars
    2
  • 1 Stars
    0
Performance
  • 5 out of 5 stars
  • 5 Stars
    208
  • 4 Stars
    28
  • 3 Stars
    4
  • 2 Stars
    0
  • 1 Stars
    0
Story
  • 4.5 out of 5 stars
  • 5 Stars
    194
  • 4 Stars
    32
  • 3 Stars
    9
  • 2 Stars
    2
  • 1 Stars
    1

Reviews - Please select the tabs below to change the source of reviews.

Sort by:
Filter by:
  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

A terrific read

A terrific read that ties the story of 12 years ago to the present that I thoroughly enjoyed. It kept me going on my long walk this morning.

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

Can’t wait till but we comes out

I’ve listened to all of the grey man novels. They just get better and better leaving you wanting more. Now I’m stuck waiting for the next one

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    4 out of 5 stars
  • Story
    4 out of 5 stars

Sierra Six a powerful engaging ride

I was originally concerned with the length of the book but the story, I should say stories running parallel over 12 years are equally engaging and solid in themselves. But the way they blend to an incredible ending is wonderful and satisfying. I will seek out more of this authors Work!

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

Great Book

Great story! I was anxiously awaiting the new Grey Man book and I wasn’t disappointed.

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

One of the best…

…by two of the best! Mark Greaney and Jay Snyder do it again!

Two terrific intertwining stories and one great, big love letter to fans of the series.

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

2 Thrillers in one

I love the Gray man series. This book is basically 2 books in one shuttling back and forth between 2 periods 12 years apart.
The pace is great, the characters believable and I was thoroughly entertained.
The narrator is excellent!

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

Maybe the best book yet!

Huge fan of the whole series but getting the origin story was awesome. One of the top two or three in the series if not the best. Well done!

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

Gives some great history on the gray man.

Love the back and forth of past and present. One of the better books in the series.

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

Hair raising

The worst part about this book is that it's over. Time to start the entire series over again!

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

You voted on this review!

You reported this review!

  • Overall
    5 out of 5 stars
  • Performance
    5 out of 5 stars
  • Story
    5 out of 5 stars

So loving these books

The narrator really makes this book come to life. Such interesting & realistic material! Thank you

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

You voted on this review!

You reported this review!