FROM THE BESTSELLING AUTHOR OF READY PLAYER ONE, SOON TO BE A MAJOR MOTION PICTURE DIRECTED BY STEVEN SPIELBERG '[A] masterful tale of Earth's desperate struggle against a powerful alien foe.' - Andy Weir, bestselling author of The Martian ************************************************************** It's just another day of high school for Zack Lightman. He's daydreaming through another boring math class, with just one more month to go until graduation and freedom-if he can make it that long without getting suspended again. Then he glances out his classroom window and spots the flying saucer. At first, Zack thinks he's going crazy. A minute later, he's sure of it. Because the UFO he's staring at is straight out of the videogame he plays every night, a hugely popular online flight simulator called Armada-in which gamers just happen to be protecting the earth from alien invaders. But what Zack's seeing is all too real. And his skills-as well as those of millions of gamers a