Star Challengers: Asteroid Crisis

June Scobee Rodgers Presents Star Challengers Book 3: Asteroid Crisis Its just supposed to be an educational field trip to the Challenger Learning Center but JJ Wren and her friends find themselves transported into the future to a time when the human race is besieged by deadly alien invaders. The evil Kylarn have shifted the orbits of three asteroids sending them on a collision course with Earth! Using skills learned from the mysterious Commander Zota JJ and her fellow Star Challengers embark on a mission to deflect the deadly asteroids before its too late. But the alien invaders arent the only enemy: the Star Challengers have to worry about human traitors too. . . .