On the Battleground, only one thing sets heroes and villains apart: choice. Thirteen-year-old Mason Davis and his friend, Abigail, are two of the mysterious Four Hexed¿the most powerfully Cursed people in the world. After their narrow escape from prison, they must go into hiding as the authorities ramp up their efforts to recapture the fugitives. But when Mason's careless choices result in the discovery and imprisonment of another member of The Four Hexed, he must rely on an old enemy to find a way into the impenetrable prison, Hydra Solaris, to rescue her. What Mason uncovers inside is more horrifying than he ever imagined: a battleground that pits inmates against each other in epic Cursed contests for the entertainment of the world's most wealthy and elite. To save his new friends and return home, Mason and his unpredictable Curse must outwit the devious Commander-in-Chief and outlast the perilous tournaments on the Battleground. If he fails, he will come face-to-face with Hydra Solaris' greatest threat: the Curse-stealing creature lurking within the prison. And if it catches up to Mason, it could end both his magic and his life.