Overgrowth Audiobook By Mira Grant cover art

Overgrowth

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Overgrowth

By: Mira Grant
Narrated by: Caitlin Kelly
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“Kelly differentiates characters smoothly, and her youthful voice and enhanced articulation suit Anastasia's feelings of otherness.”—AudioFile

Day of the Triffids meets Gretchen Felker-Martin's Cuckoo.

This is just a story. It can't hurt you anymore.

Since she was three years old, Anastasia Miller has been telling anyone who would listen that she's an alien disguised as a human being, and that the armada that left her on Earth is coming for her. Since she was three years old, no one has believed her.

Now, with an alien signal from the stars being broadcast around the world, humanity is finally starting to realize that it's already been warned, and it may be too late. The invasion is coming, Stasia's biological family is on the way to bring her home, and very few family reunions are willing to cross the gulf of space for just one misplaced child.

What happens when you know what’s coming, and just refuse to listen?

A Macmillan Audio production from Tor Nightfire.

©2025 Mira Grant (P)2025 Macmillan Audio Editors Select First Contact Horror Science Fiction
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Critic reviews

“Mira Grant re-cements her place at the top of the sci-fi horror genre.”—T. Kingfisher

“I've never read anything like this. Overgrowth is poignant, beautiful and terrifying by turns. Grant has written a first contact story that captures the wonder of encountering something truly alien—and the horror of learning how much of the alien is already inside us. A unique and utterly addictive read, from the first green shoots to the final harvest.”—M.R. Carey, author of The Girl With All the Gifts

“By turns heartfelt and grotesque, Overgrowth is the totally original space invasion novel for our times, as much about aliens as it is about very human alienation. It’s Mira Grant’s best work yet!”—Christopher Golden, New York Times bestselling author of The House of Last Resort and The Night Birds

Editorial Review

These dinner reservations were made in advance...
Aliens are coming, and they’re hungry. Told from the perspective of seemingly unreliable Stasia Miller, Overgrowth follows the oncoming invasion of Earth by a man-eating alien species. Here’s the catch: Everyone knew about it! No one took Stasia’s continual reminders of impending doom seriously—even her own revelation of alienhood was ignored. One of my favorite perspectives has always been the unreliable narrator, and I have to give a few snaps to narrator Caitlin Kelly. She delivers Stasia’s quirks and uncustomary ways well. Overgrowth also comes at the right time as social commentary surrounding commercial space travel grows. For horror fans, it serves as a fun reminder of the consistent question: We don’t know what’s out there, but do we want to?—Nicole R., Audible Editor

All stars
Most relevant
What I really like:
-Ms. Grant’s ability to create a range of characters I cared about in settings that are believable.
-telling a story I want to follow to find out what is going to happen and how things will develop.

Great story, excellent narration

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An incredibly fun journey into a plant based future. if you enjoyed the Area X books, war of the worlds, or Semiosis you will enjoy this book. Great characters intriguing plot and a solid opening grab followed through with a very worthwhile finale. well done from start to finish.

The Plantocolypse!!!

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Yet another fantastic book from Mira Grant. I thoroughly enjoyed it, and got a lot of weeding and planting done while listening to the audiobok.

Excellent for listening while gardening

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Minus one star for lecturing. Hopefully this is a one off occurrence, normally she does not talk down to her readers

Good story , spoiled by check box messaging

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MG has created another out of the box tale; this is a character-driven story that is deeply disturbing and incredibly timely. Let her tell you the story; it’s only a story…it can’t hurt you.

No spoilers

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