Title: War of the worlds
Description: Ben, Gwen, and Kevin have to stop an alien invasion, with the help of former enemies.
Subjects: Juvenile fiction, Human-alien encounters, Imaginary wars and battles, Adventure and adventurers, Extraterrestrial beings, Fiction, Space warfare, Science fiction, Rasio and television novels, Superheroes, Good and evil, Children's fiction, Extraterrestrial beings, fiction