Mare Barrow's journey continues in 'King's Cage' as she faces her greatest challenge yet. Captured and powerless without her lightning, she's at the mercy of her deceitful first love, King Maven Calore. As Maven weaves his mother's manipulative web to maintain control, Mare's allies, the newbloods and Reds, prepare for a looming conflict. Among them is Cal, the exiled prince determined to free Mare and reclaim his throne. In this intricate game of power, loyalty, and betrayal—where every decision can ignite a blazing conflagration—can Mare find a way to escape and help lead the rebellion, or will her spark be forever extinguished?