Content levels
Trigger warnings
Positive tags
Heroine archetypes
Protagonist archetypes
Themes
Synopsis
Returning to her research facility on Earth in time for spring migration, Dr. Mackenzie Cooper believes she is now free to pick up her life again. But the enemy is on the move, destroying planet after planet.
Is Migration appropriate for my child?
Suitable for most readers 13 and up.
Second book in a science fiction series featuring large-scale planetary destruction and an enemy force devastating worlds. Violence is implicitly present through the destruction of planets but likely not graphic on an individual level.
What to know going in
This book has strong violence, no sexual content, and mild language. Content notes include genocide, mass death, and war.
Publisher ages reflect reading level; our rating reflects content maturity — they can differ.
Who'll love this
Teens who enjoy large-scale science fiction adventures with high stakes will appreciate the planetary threat and scientist protagonist.