To Kill a Shadow

The story takes place in Asidia, a kingdom cursed to perpetual night. Fifty years ago, the Sun Goddess Raina vanished, plunging the realm into darkness and surrounding it with a poisonous supernatural fog called the Mist. Food reserves dwindle, and King Cirian conscripts young men each year through the Calling to join the Knights of the Eternal Star, a warrior order tasked with entering the Mist to find a cure.

Kiara Frey, an 18-year-old from the village of Cila, dreads the Calling because her brother Liam, who has a chronic breathing condition, will be taken. Kiara has trained secretly with her Uncle Micah, who arrived after a childhood attack by a shadow beast, a creature of darkness said to devour souls. The attack left her hands covered in blue-and-black scars she hides beneath leather gloves, and the villagers have treated her as cursed ever since. Only her late grandmother Aurora showed her unconditional love.

When the Knights arrive, a bully named Adam provokes Liam and pins him down. Kiara intervenes and defeats Adam. The commander, known as the Hand of Death, conscripts her, the first girl taken in 50 years. She is dragged away without goodbyes, understanding her selection spares Liam. A flashback reveals the commander's trauma: On a prior mission, the Mist's hallucinatory effects caused his men to kill each other, leaving him the sole survivor.

In the capital of Sciona, recruits train in an underground sanctum beneath the king's glass palace. Kiara befriends Patrick, a bookish boy who reminds her of Liam, and bonds with Jake and Nic, two inseparable friends. She discovers the commander is Jude Maddox, a scarred 19-year-old with a reputation as the kingdom's most feared warrior. Training is brutal, and Jude quietly protects Kiara behind the scenes. His role as Cirian's personal assassin illustrates his entrapment under a king he cannot defy.

Jude confides that Cirian is forcing him to lead recruits into the Mist ahead of schedule, believing three divine objects called keys can break the curse. A prophecy from the sun priestesses hints at the resolution: "The day will be restored when the darkness falls for the light." Cirian commands Jude to include Kiara and has him beaten when he protests. Jude selects Patrick, Jake, Nic, and a recruit named Alec but excludes Kiara. She steals a horse named Starlight and follows. After a confrontation, Jude reluctantly lets her join, and the group heads toward Nightshade's Cradle.

In caves leading to the Mist, the Knight Carter is killed by poisonous spiders. Kiara ends his suffering, her first kill. The group emerges into the Mist, a landscape of bone-white trees under unnatural moonlight. A poisonous wind triggers hallucinations, and Kiara discovers that her bare, scarred touch breaks the Mist's hold on others. Nic, unreached in time, dies by his own hand. Days later, masked attackers ambush them, fatally wounding Jude's closest friend Isiah. Separated from the other recruits, Kiara and Jude press on alone.

Both manifest hidden powers during a subsequent attack: tendrils of shadow erupt from Kiara, while Jude produces a blaze of fire and light. Kiara loses consciousness and dreams of her grandmother Aurora, who urges her to finish reading a lore book Jude gave her. They discover a glen of vivid color in the Mist's heart, free of fog. Kiara removes her gloves and shows Jude her scars by choice for the first time; he had glimpsed them during an earlier altercation. He kisses each scarred finger, telling her she wears her scars well.

Kiara reads the lore book's critical chapter. Raina's mortal lover, granted immortality, conspired with Arlo, God of Earth and Soil, to steal her power. Arlo provided the lover with a dagger called the Godslayer, capable of piercing immortal flesh. The lover stabbed Raina, splitting her divine power into three pieces: one he seized, one flew to an unsuspecting mortal host, and the third remained with Raina, who used her last magic to vanish. Without her, the sun never rose again.

The glen disappears overnight. From a cliff, they find Patrick, Jake, and Alec held captive by the masked creatures. The creatures' leader devours Alec alive. They execute a rescue: Jude creates a distraction while Kiara frees the captives and holds off pursuers with her shadow powers. The creature leader bites her throat, but her blood poisons him. An undead version of Nic then attacks, revealing that anyone who dies in the Mist becomes a monster. Jake kills the creature wearing his best friend's face. Patrick vanishes.

Kiara's Uncle Micah appears, trapping her and Jake in a cage of roots, and reveals his true identity as Arlo, God of Earth and Soil. He explains that Aurora was a sun priestess, a woman devoted to Raina, who sought his help after Kiara's childhood attack awakened a fragment of divine power within her. Arlo trained Kiara out of guilt for his role in Raina's betrayal. He reveals Kiara is one of the three keys, a living vessel of Raina's fragmented power, and that a man born to reunite all three pieces has already entered her life, then vanishes.

Jude, separated from the group, receives a vision revealing the truth about Patrick and races back. But Patrick has already unmasked himself as Raina's immortal, traitorous lover, the man who cursed Asidia. Disguised as a shy recruit throughout the journey, he manipulated Kiara by modeling himself after Liam. He stabs her and reveals Jude is also a key-holder, Raina's mortal descendant carrying the third piece of divine power. He needs the blood of all three vessels at the sacred clearing to summon the Godslayer and claim ultimate power.

Jude heals Kiara's wound by channeling Raina's power, leaving matching scars on both of them. Lorian, God of Beasts and Prey, arrives with wolves as Patrick's reluctant ally. In the ensuing battle, Patrick uses the spilled blood to summon the Godslayer from the earth. Lorian, realizing Jude is Raina's descendant, abandons Patrick, who stabs Jude with the Godslayer, seemingly killing him.

Kiara unleashes both shadow and golden light, wraps Patrick in darkness, and drives the Godslayer through his heart. The stolen piece of Raina's power emerges as a glowing orb. Rather than claiming it, Kiara presses it into Jude's lifeless hand. He is resurrected in an explosion of golden light, now carrying two of the three divine fragments. Black-vein scars matching Kiara's spread across his chest.

Jude realizes Kiara intends to sacrifice herself so he can extract the final piece with the Godslayer, restoring the sun but killing her. While she sleeps, he leaves with the weapon. He pins his Knight's emblem to a note confessing she gave him hope. On the reverse is Cirian's kill order, commanding Jude to murder Kiara and the recruits and bring back the Godslayer, revealing the king never wanted the curse broken; he wanted a weapon capable of killing gods.

Kiara wakes, reads both sides, and grasps that the king is their true enemy. She vows to fight back. In the epilogue, Jude arrives in Fortuna, a lawless city, and meets a notorious underworld figure known as the Fox. He places a silver compass he believes belonged to his mother on the table and reveals the Fox is his mother, who abandoned him to his abusive father. He tells her she owes him a favor, setting up his quest to unite the keys without sacrificing Kiara.