About the book: 2007 / Earth's first contact with aliens brought the worst nightmares to life. From the moon of Jupiter, Ganymede, shells fly to Earth, destroying entire cities. The role of saviors of humanity falls to homeless orphans - after all, no one will miss them. They must do the impossible - make an interplanetary flight and destroy the satellite of Jupiter. They have only one chance. The future of all humanity depends on them.