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Trigger warnings
Positive tags
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Synopsis
Humans and their allies unite to stop an alien invasion of Earth, while the the aliens, who believe in reincarnation and are unafraid of dying, make a brutal attack on the planet, helped by their acquisition of advanced human technology.
Is Extremis appropriate for my child?
Suitable for most readers 13 and up.
This military sci-fi features strong war violence including a brutal alien invasion of Earth. The alien antagonists believe in reincarnation and fight without fear of death, leading to intense combat scenarios.
What to know going in
This book has strong violence, no sexual content, and moderate language. Content notes include death, mass death, and war (see the full list above).
Publisher ages reflect reading level; our rating reflects content maturity — they can differ.
Who'll love this
Teens who love military sci-fi and space battles will enjoy this alliance of humans and aliens defending Earth against a relentless invasion.