Give audiobooks, support local bookstores! Start gifting
The Gemini Effect by Chuck Grossart
  Send as gift   Add to Wish List

Almost ready!

In order to save audiobooks to your Wish List you must be signed in to your account.

      Log in       Create account
Illustration of person sitting

Shop small, give big!

With credit bundles, you choose the number of credits and your recipient picks their audiobooks—all in support of local bookstores.

Start gifting
Phone showing make the switch message

Limited-time offer

Get two free audiobooks!

Now’s a great time to shop indie. When you start a new one credit per month membership supporting local bookstores with promo code SWITCH, we’ll give you two bonus audiobook credits at sign-up.

Sign up today

The Gemini Effect

$35.99

Get for $14.99 with membership
Narrator Phil Gigante

This audiobook uses AI narration.

We’re taking steps to make sure AI narration is transparent.

Learn more
Length 8 hours 39 minutes
Language English
  Send as gift   Add to Wish List

Almost ready!

In order to save audiobooks to your Wish List you must be signed in to your account.

      Log in       Create account

Killer Nashville Silver Falchion Award Winner, Best Science Fiction Novel

Amazon Breakthrough Novel Award Finalist

A single raindrop opens a Pandora’s box when the spawn of perverse genetic research performed during World War II is unleashed on an unsuspecting modern world. By dawn, only a dead city remains, eerily quiet and still, except for mutant beasts that hide from the light, multiply, and await the shadows of night to continue their relentless advance.

Ordered to investigate the unfolding crisis, biowarfare specialist Carolyn Ridenour barely escapes the creatures’ nocturnal onslaught, saved in the nick of time by Colonel Garrett Hoffman, who lost hundreds of his troops to a swarm that neither bombs nor bullets can stop.

As Carolyn and Garrett race to stop the plague, a battered and broken government prepares to release the fury of America’s nuclear arsenal on its own soil and its own citizens.

The Gemini Effect was originally published as The Mengele Effect. This edition has been completely edited and revised, including significant plot changes.

Chuck Grossart lives in Bellevue, Nebraska, with his wife, kids, and usually too many dogs.

Illustration of person sitting

Shop small, give big!

With credit bundles, you choose the number of credits and your recipient picks their audiobooks—all in support of local bookstores.

Start gifting
Phone showing make the switch message

Limited-time offer

Get two free audiobooks!

Now’s a great time to shop indie. When you start a new one credit per month membership supporting local bookstores with promo code SWITCH, we’ll give you two bonus audiobook credits at sign-up.

Sign up today
Give audiobooks, support local bookstores! Start gifting