Cider - Shop now
Kindle Unlimited
Unlimited reading. Over 4 million titles. Learn more
OR
$5.99 with 50 percent savings
Print List Price: $11.99

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

Something went wrong. Please try your request again later.

Doppelganger Danger: Blue Moon Investigations Sacramento Kindle Edition

4.7 out of 5 stars 1,010 ratings

‘It’s like Jack Reacher got trapped inside an episode of Scooby-Doo!’

Investigate a murderous ghost, do battle with a shapeshifting demon, get ready for a date … it’s all in a day’s work for Sacramento’s only paranormal detective.

The ghost of a man’s wife come to avenge her untimely death, a woman caught on camera stealing drugs from work when she wasn’t even in town, and a family with a secret no one can ever know.

When August Watson takes on all three cases at the same time, it’s not because he is short of work, but due to the worrying connection between them – they all point to impossible doubles.

Is there a shapeshifting doppelganger at work? It seems like the only explanation for the craziness ensuing, but as he gets closer to the truth, the long-hidden lies he disturbs come with a price.

His own life.

In a race to stop more deaths, August Watson will risk it all.

If only work was his biggest worry.
Unwell Hydration from Alex Cooper
Hydrate & focus with every sip Shop now

Shop this series

 See full series
There are 10 books in this series.

Customers also bought or read

Loading...

Editorial Reviews

Review

"I thoroughly enjoyed the first book and I have to say, in TOTAL, honesty, I enjoyed this one even more."


"I've not been able to put it down."


"I loved it. Where's the next one?"

About the Author

Alex and Steve met online through their mutual love of urban fantasy. Both established writers with their own successful series, they chose to collaborate on a spin-off of Steve's Blue Moon Investigation stories.They duo hope to meet in person one day when pandemics and other global dramas allow, but one of them will need to cross the Atlantic first. Until then, they will continue to churn out thrilling fantasy tales.Read on and enjoy.

Product details

  • ASIN ‏ : ‎ B0BGJ2PXZG
  • Publisher ‏ : ‎ (November 25, 2022)
  • Publication date ‏ : ‎ November 25, 2022
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 8.2 MB
  • Simultaneous device usage ‏ : ‎ Unlimited
  • Text-to-Speech ‏ : ‎ Enabled
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Not Enabled
  • Word Wise ‏ : ‎ Enabled
  • Print length ‏ : ‎ 324 pages
  • Customer Reviews:
    4.7 out of 5 stars 1,010 ratings

About the authors

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

Customer reviews

4.7 out of 5 stars
1,010 global ratings

Review this product

Share your thoughts with other customers

Customers say

Customers enjoy the book's complicated plot and great character development. They find it a good read, with one customer particularly appreciating the first-person narration.

AI-generated from the text of customer reviews

14 customers mention "Story quality"14 positive0 negative

Customers enjoy the story's development, with one customer describing it as a fast-paced murder mystery with interesting twists.

"...Love the first person narration and the plot lines. Start reading this author Now!" Read more

"...This book has the right blend of characters, story lines, seriousness and at times silliness offsetting tragedies...." Read more

"What a wonderful story! I absolutely love, love, love this story!!..." Read more

"...confusing at times because of intertwined stories but the twist at the end is great." Read more

7 customers mention "Character development"7 positive0 negative

Customers appreciate the character development in the book, with one mentioning how the characters are relatable on multiple levels.

"A well written book. You need to read the first in the series. Love the characters, love the family of friends...." Read more

"A modern Scooby doo Type of novel. This book has the right blend of characters, story lines, seriousness and at times silliness offsetting tragedies..." Read more

"Good character development, like the way Alex creates interesting camaraderie and most of all creates individuals you can relate to an many levels..." Read more

"...Ready to see where these relatable and very interesting characters take us next!" Read more

7 customers mention "Readability"7 positive0 negative

Customers find the book to be a good read, with one customer particularly appreciating the first-person narration.

"...Love the characters, love the family of friends. Love the first person narration and the plot lines. Start reading this author Now!" Read more

"Great writing but a bit too much much realism for my liking, not enough escapism or humor for me to relax with." Read more

"A good read and keeps you wondering if any cases are really going to be solved or just slip into oblivion...." Read more

"...How is he involved? What is he up to? This is a great read!" Read more

Top reviews from the United States

  • Reviewed in the United States on December 18, 2022
    A well written book. You need to read the first in the series. Love the characters, love the family of friends. Love the first person narration and the plot lines. Start reading this author Now!
  • Reviewed in the United States on January 18, 2023
    A modern Scooby doo Type of novel. This book has the right blend of characters, story lines, seriousness and at times silliness offsetting tragedies. it reminds me of characters like Fletch and Leo Waterman and countless others. A fast paced mystery that kept me hooked and I an looking forward to the next installment. I never would have expected the tragic mysteries encountered while debunking paranormal phenomenon.
    One person found this helpful
    Report
  • Reviewed in the United States on March 26, 2025
    Great writing but a bit too much much realism for my liking, not enough escapism or humor for me to relax with.
  • Reviewed in the United States on December 14, 2023
    What a wonderful story! I absolutely love, love, love this story!! It's really hard to think about how much crime and other bad things go down around us every day! I wouldn't actually want to meet up with the dangers these sleuths see all the time! I also can't wait to begin the next story in this series!!
  • Reviewed in the United States on June 12, 2024
    I have been reading Steve Higgs books nonstop since discovering the Patricia series. I got hooked completely again by the original Blue Moon series. I also read a couple of the off shoot series and then this one. I was mistaken in my book one review when I said I gave book 1 4 stars… because I was actually reviewing book 1. The reason I goofed was it sort of felt like 2 books. I was not real fond of August in the first half of the book but as the character developed he became 5 stars, as did the rest of the characters.
    Book 2 is also a full 5 stars. Plot, characters, timing, all awesome! This feels so Blue Moon!!
  • Reviewed in the United States on November 10, 2023
    A good read and keeps you wondering if any cases are really going to be solved or just slip into oblivion. The ins and outs of three cases at the same time keep you wondering!
  • Reviewed in the United States on December 28, 2023
    Good character development, like the way Alex creates interesting camaraderie and most of all creates individuals you can relate to an many levels and care about. Love Steve Higgs books but this one has more depth to it. So great collaboration with Alex Gates. Hope there are a lot more!
  • Reviewed in the United States on May 17, 2023
    Higgs and Gates are taking their time to build characters and develop the Universe. Somewhat confusing at times because of intertwined stories but the twist at the end is great.

Top reviews from other countries

  • Estelle
    5.0 out of 5 stars Another world from Steve Higgs
    Reviewed in Australia on December 11, 2023
    More characters to enjoy but with greater depth even then the original Higgs Blue Moon Investigations perhaps? Is that thanks to Alex Gates? Still some fun but perhaps a little darker too, will be curious to see how these characters in this world grow.
  • Charlotte
    5.0 out of 5 stars Doppelgänger Danger Blue Moon investigations
    Reviewed in the United Kingdom on November 22, 2023
    Stay with the introduction of the characters ,and on into the investigation set up and you will be unable to discontinue reading this book . It is an excellent read. It is an enthralling enigmatic story that had my focused attention to the end .Although for me personally not the end I would like to read more of the Blue Moon investigation Series . That experience of enjoying a book that you have reached the end of and now have to wonder if you can find something else as enthralling that is the experience of reading this book.
  • sheila
    5.0 out of 5 stars loved it ,Where the next one?
    Reviewed in the United Kingdom on February 3, 2023
    Brilliant series i love the original Blue Moon Investigations books and this is a spin off from . At first I thought 'oh this doesn't this in. it ,especially two little cute dogs . But this the second one and I have really enjoyed it ,now I'm getting to know the characters . I now want to read book three
  • Kelly Metcalfe
    5.0 out of 5 stars Fantastic!
    Reviewed in Australia on August 10, 2023
    I’m obsessed and loving this series. I really like the darker edge to it.
  • T. Giles
    4.0 out of 5 stars Great fun book 2 in series
    Reviewed in the United Kingdom on February 13, 2023
    Great fun, bond between characters develops, August trying to disprove paranormal or strange crimes. 3 crimes, with 3 different back stories, all different but similar. A bit of dating on the side with amusing results.

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?