Warcross is a captivating children's book by number 1 New York Times bestselling author Marie Lu, set in an exciting, futuristic world. The story follows talented hacker Emika Chen, who lives in a society dominated by a game. Warcross is not just a game, but a global phenomenon that attracts millions of people. Emika, who works as a bounty hunter to make ends meet, dares to hack into the opening round of the international Warcross championships. This leads to unexpected fame and an invitation from the mysterious game creator Hideo Tanaka, who needs her as a spy for the championship. However, as Emika dives into the dazzling world of the game, she uncovers a dark conspiracy that threatens the entire Warcross empire. This thrilling narrative combines elements of science fiction and thriller, offering an engaging read for young readers.