: The narrative centers on themes of identity, isolation, and diversity . It uses the extraterrestrial "otherness" of its protagonist to mirror the delicate social mechanisms of high school life .
: The story focuses on John’s struggle between his destiny to fight and his desire for a normal life after falling in love with Sarah Hart. Origins and Future Sono il numero quattro (2011) Recensione - Quinlan.it
: The fourth of the nine, living in Paradise, Ohio, where he begins to develop "Legacies" (superpowers).
: Nine alien children from the planet Lorien are hidden on Earth to escape the Mogadorians. They can only be killed in a specific numerical order due to a protective charm.