Eighteen men enter the arena. Only one will survive. And one of them… is not a boy at all.
When her twin brother is chosen to fight in the Emperor’s deadly Thorn Trials—a brutal, week-long competition where the victor wins the crown and the hand of the princess—nineteen-year-old Evaine Vale makes a desperate decision.
She cuts her hair. Binds her chest. And takes his place.
Now disguised as a boy named Evin, she must outwit and outlast seventeen others in a bloodstained arena filled with shifting terrain, vicious beasts, and deadly traps. But as the trials grow more brutal, Evaine finds herself drawn to Cassian Varo, a strong, mysterious competitor with secrets of his own—and a touch that sets her blood on fire.