The kingdom of Kandala is on the brink of disaster. Rifts between sectors have only worsened since a sickness began ravaging the land, and within the Royal Palace, the king holds a tenuous peace with a ruthless hand. King Harristan was thrust into power after his parents' shocking assassination, leaving the younger Prince Corrick to take on the brutal role of the King's Justice. The brothers have learned to react mercilessly to any sign of rebellion—it's the only way to maintain order when the sickness can strike anywhere, and the only known cure, an elixir made from delicate Moonflower petals, is severely limited. Out in the Wilds, apothecary apprentice Tessa Cade is tired of seeing her neighbors die, their suffering ignored by the unyielding royals. Every night, she and her best friend Wes risk their lives to steal Moonflower petals and distribute the elixir to those who need it most—but it's still not enough. As rumors spread that the cure no longer works and sparks of rebellion begin to flare, a particularly cruel act from the King's Justice makes Tessa desperate enough to try the impossible: sneaking into the palace. But what she finds upon her arrival makes her wonder if it's even possible to fix Kandala without destroying it first.

To save their kingdom, they must embark on a dangerous journey... The kingdom of Kandala narrowly avoided catastrophe, but the embers of revolution still simmer. While King Harristan seeks a new way to lead, Tessa and Prince Corrick attempt to foster unity between rebels and royals. But the consuls who control the Moonflower will not back down, and Corrick realizes he must find a new source for the lifesaving Elixir. When an emissary from the neighboring kingdom of Ostriary arrives with an intriguing offer, Tessa and Corrick set out on an uncertain journey as they attempt to mend their own fractured relationship. This could be their only chance to keep the peace and bring relief to the people of Kandala, but danger strikes during the journey to Ostriary, and no one is who they seemed to be...

Left for dead, but desperate to survive . . . they have one last chance to save their kingdom. Prince Corrick is out of options. Held captive by the vicious Oren Crane, he’s desperate to reunite with Tessa, but will need to ally with the rebel leader Lochlan, who until now wished him dead. An unlikely but deadly pair, Corrick and Lochlan must plot their next moves carefully. An island away, Tessa Cade is heartbroken and angry. Grieving Corrick, and unsure how to find a way back to Kandala, she doesn’t know who to trust. Until Rian—the man she trusts least—makes an offer: aid in a plot to finally oust Oren Crane and see what the future holds . . . Meanwhile in Kandala, Harristan is dethroned and on the run. He’s struggling to unite the rebels in his fractured kingdom, but he finds support—and maybe more—in unexpected places. Can Harristan be the king his people need? Can Corrick and Tessa find their way back to each other? As outside threats loom and the fires of revolution burn from within, time is running out to save their kingdom. In the thrilling conclusion to the Defy the Night series, Brigid Kemmerer crafts heartrending twists and devastating turns that will keep readers breathless to the very end.