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Alien: Echo

When aliens overrun a new colony, Olivia flees with her twin sister. As the creatures adapt to local wildlife, her xenobiology knowledge becomes a weapon for survival.

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Named to the 2020 Hal Clement list and the 2020 ALA Rainbow List

An original young adult novel of the Alien universe

Olivia and her twin sister Viola have been dragged around the universe for as long as they can remember. Their parents, both xenobiologists, are always in high demand for their research into obscure alien biology.

Just settled on a new colony world, they discover an alien threat unlike anything they’ve ever seen. And suddenly the sisters’ world is ripped apart.

On the run from terrifying aliens, Olivia’s knowledge of xenobiology and determination to protect her sister are her only weapons as the colony collapses into chaos. But then a shocking family secret bursts open―one that’s as horrifying to Olivia as the aliens surrounding them.

The creatures infiltrate the rich wildlife on this untouched colony world―and quickly start adapting. Olivia’s going to have to adapt, too, if she’s going to survive...

An Imprint Book

“An electrifying adventure ... Olivia and Kora are smart, strong young women, and their romance, born in the midst of unspeakable horror, is believable. ... A worthy and terrifying addition to a classic sci-fi/horror franchise.” ― Kirkus Reviews

“Mira Grant blends gritty science fiction, complex characters, and nail-biting horror in Alien: Echo ! A spellbinding novel of courage and terror.” ―Jonathan Maberry, New York Times– bestselling author of Broken Lands and editor of Aliens: Bug Hunt

Publisher: Imprint
Amazon reviews: Read reviews on Amazon

Book tags

Content warnings

No content warnings are recorded. Missing warnings do not mean the book is warning-free.

Horror profile

Scary: Not rated
Creepy: Not rated
Gore: Not rated
Disturbing: Not rated
Weird: Not rated

How we calculate this

These are editorial estimates of intensity, informed by reading and review evidence, then checked before publication. They aren't star ratings, reader-vote averages or a measure of quality.

Each dimension runs from 1 (low) to 5 (exceptionally intense). A 5 is reserved for strongly consistent evidence. People experience horror differently.

Scary: Fear, tension and immediate threat.
Creepy: Unease, dread and an uncanny atmosphere.
Gore: Graphic injury, blood and bodily detail.
Disturbing: Upsetting ideas and lingering psychological impact.
Weird: Surreal, strange and reality-bending elements.

We draw a filled profile only when all five scores have been reviewed. Unrated does not mean mild. Missing scores are not estimated from genre tags or your saved taste. This profile isn't a complete content-warning guide.