Davian, a 16-year-old boarding student at the school for the Gifted in Caladel, awakes from a nightmare about a knife in his face. He and his friend Wirr report to Administrator Talean’s office, where they are required to witness a classmate’s sentencing for violating the Treaty (the document signaling the end of the war with the Augurs and mandating the Gifted’s obedience to the Four Tenets). Talean and the faculty do not relish the occasion, but they follow protocol and banish the offending student, Leehim, from the Gifted community. He is stripped of his ability to use Essence, the magical life force, and made into a Shadow—a procedure that leaves black veins on his face.

Back in his room, Davian confides in Wirr about his fears of failing the upcoming Trials. In three weeks, he must demonstrate his control of Essence or be turned into a Shadow himself. The Mark of the Gifted appeared on Davian’s wrist three years ago, but he has yet to wield Essence despite all his research. He wonders if his secret talent of detecting lies is interfering with his latent Gifted powers. Wirr warns him not to tell anyone of this secret ability, as the skill is akin to an Augur’s ability to Read minds. If anyone found out, he would be accused of violating the Treaty and would be turned over to the Administration. The Elders believe that Davian’s Gift is blocked due to the traumatic attack three years ago, which left him with a long scar down the left side of his face. That day was also the day the Mark appeared.

The next morning, Davian oversleeps, and his classmate, Asha, a girl he likes, reminds him of his shopping errands for Mistress Alita, the head cook who raised him in his youth, when he worked as a serving boy. Davian heads to the kitchen and then to Administrator Talean’s office. There, he submits to wearing a Shackle (a device that prevents the use of Essence) before he heads out to the village shops. He passes fellow students and enviously watches them wielding Essence as slivers of light come from their hands.

Since the war against the Augurs, the people in the nation of Andarra have despised the Gifted and consider them traitors for supporting the Augurs. Hunters with illegal bounties or hostile townspeople have been killing the Gifted. All the Augurs were executed 20 years ago, and for the past 15 years, the Gifted have been bound by strict oaths to the Northwarden, head of the Administration, who oversees the monitoring of their powers in Gifted schools. The oaths are part of the Treaty and are known as Tenets. They come into effect once the Mark (a black symbol depicting a man, woman, and child enclosed in a circle) appears on a Gifted’s skin the first time they use Essence.

When Talean is alone, Davian returns to the man’s office, remarking that the Shackle is pointless since he has not been able to wield Essence. Talean is sympathetic but follows procedure. He touches the Shackle, a black metal ring, against Davian’s mark, and the metal spreads upward and encases his left arm. Talean invokes the Fourth Tenet to obey all Administrators, and Davian’s arm warms as the Tenet takes effect.

In the village, Davian endures the townspeople’s hostile stares and avoids making eye contact. At the butcher’s, a Shadow is shunned at the door, and Davian cautiously explains that Shadows are misunderstood and are mostly Gifted students who have failed their Trials. When the butcher argues that a Shadow named Shadraehin has been terrorizing the region, Davian knows to stay quiet. Privately, he thinks the figure must be one of the Administration’s fearmongering rumors.

When he leaves, Davian is attacked by a group of young boys who call him by the slur “bleeder.” A fellow Gifted, Elder Ilseth Tenvar, comes to Davian’s aid, explaining that people hate the Gifted because they fear and resent those who are more powerful. Davian recounts his attack from three years ago, when a group of drunk men almost killed him. At the time, another Gifted, Elder Taeris Sarr, saved him by killing his attackers. Taeris was then executed for breaking the Tenet that forbids using Essence to harm non-Gifted. Davian has no memory of the event, other than waking up with his wounds and the mark on his wrist.

Ilseth tells Davian about the past war, known as the Unseen War. Augurs had been the rulers of Andarra and had the ability to Read minds and See the future. The Gifted, with their separate power of Essence, were trained throughout the land’s five Tols, or Gifted strongholds, and served the Augurs. When the Augurs discovered that their visions were no longer accurate, they hid their failings and created stricter laws to hold onto their power, punishing those who challenged them. The Gifted served as their enforcers. Some considered the Augurs tyrants and the Gifted corrupt, but Ilseth argues that such behavior was the exception, not the rule. Loyalists to the royal family led a rebellion against the Augurs. With the aid of Hunters and new weapons, they massacred all the Augurs and destroyed three of the Tols, killing many Gifted. The surviving Gifted submitted to the Administration’s control and signed the Treaty, which bound them to strict Tenets. They were allowed to stay in the remaining Tols: Tol Athian, which oversees Davian’s school, and Tol Shen. To Davian’s dismay, Ilseth explains that he is from the capital; the Trials have been moved to tomorrow.

Ilseth wakes Davian in the middle of the night and reveals that he knows Davian is an Augur. He tells Davian to use his Reading powers to confirm that what he says is true, then claims that Davian must leave tonight and head north to the Boundary, a barrier built by the Augurs 2,000 years ago during the Eternity War to keep the ancient enemy, Aarkein Devaed, and his monsters from advancing. The Boundary has weakened, and only another Augur can help fortify it. Though Devaed is dead, there have been recent sightings of his creatures. Ilseth gives Davian money and a mysterious bronze box, a Vessel that stores Essence and will guide him to his destination. As Davian quickly packs, Wirr visits and refuses to let Davian travel alone. Although he is worried about the dangers, Davian gratefully accepts his devoted friend’s company.

Asha awakes in her bed, expecting to hear the din of the Trials preparation, but she instead is greeted with an eerie silence. To her horror, she discovers that everyone in her school has been massacred, but she is relieved to find signs that Davian and Wirr must have escaped. Ilseth appears and shows Asha a note that Wirr left behind; it explains that he and Davian have gone on an important mission. Ilseth says he doesn’t know if Davian built his plans on a prophecy of the future or if he saved Wirr out of dumb luck. He also doesn’t know why Asha’s life was spared. Suddenly, reasoning that Asha cannot know that the boys are still alive, Ilseth places a black disc against her neck, wiping her memory of the morning’s horrors and turning her into a Shadow.

Davian and Wirr travel north for three weeks, camouflaging their Marks. They stop at the border town of Talmiel for the night and must then cross into Desriel, a country where the Gifted are executed as abominations for wielding a power reserved for gods. In the inn’s common room, they meet a smuggler named Anaar who warns them that a female Hunter has been staring at them all evening. Davian and Wirr hire Anaar to take them across the river by boat in order to bypass the guarded bridge. Anaar arranges for them to rendezvous and depart later that night.

Back in their room, Davian and Wirr are attacked by two Hunters pretending to be Anaar’s associates. Suddenly, the Hunter from the common room, Breshada, bursts into the room and kills the attackers. The boys are confused and thank Breshada, but she merely looks at them with disgust and makes an obscure reference to repaying Tal’kamar’s debt (the character from the Prologue). She storms out of the room, threatening to kill the boys if their paths should cross again.

Anaar and his companion take the boys across the river. Anaar warns them not to use Essence since the patrollers have Finders (devices that detect their power). When they arrive on the opposite bank, Anaar demands all the boys’ money. Davian refuses, threatening to use Essence so that they are all discovered. Impressed with Davian’s boldness, Anaar leaves him some coins and departs.

Elder Ilseth takes Asha to Tol Athian, the Gifted stronghold in Andarra’s capital of Ilin Illan. The stronghold is built into the mountainside, with dark tunnels and chambers deep in the bedrock. Asha’s Gifted Mark has faded from her skin, replaced by the black veins of a Shadow. With the mark gone, Asha is no longer bound by the Tenets. At the Gifted Council, Ilseth falsely recounts that Asha, overcome with grief, attacked them and threatened to kill herself if they didn’t turn her into a Shadow. Asha disbelieves Ilseth’s account but is shocked to learn that Davian and her friends are dead. She remains numb and silent as Nashrel Eilinar, the Council leader, agrees to allow Asha to stay at the Tol. Asha is given a room, but the door is locked from the outside. Ilseth cautions her to hide her identity, as the Administration will harass her if they learn that she is the sole survivor of the massacre.

A week later, Asha sees an Administrator abusing a fellow Shadow named Raden. When she intervenes, she is struck as well. Jin, a respected Shadow, steps in and scares the Administrator away by mentioning the Shadraehin (the leader of a group of rebel Shadows). To Asha’s frustration, Jin explains that they have no power to challenge the Administration’s or the Gifted’s mistreatment of Shadows.

Jin takes Asha to see the Shadraehin’s base, an underground Sanctuary for Shadows deep in the Tol’s caverns. Asha is amazed to see a robust community with houses, a school, and Shadows living free from harassment. Some Administrators fear that the Shadows will fuel a rebellion, and Jin uses the false rumor as leverage. Asha sees a mysterious figure hidden under a black hood, and Jin cautions her to avoid the man, who is known as the Watcher.

Jin and Asha join a family for dinner and are horrified when the Watcher enters the home uninvited, demanding to speak with Asha and calling her by her full name: Ashalia Chaedris. The Watcher kills Jin and announces that Asha’s presence foretells death for the Watcher and his siblings. He departs, leaving Asha unharmed.

In Desriel, Wirr and Davian devise a scheme to make money; at a tavern, they pretend to be fellow Hunters in order to join some men in a card game. Davian uses his ability to Read lies and discerns when the players are bluffing. When one of the men loses and lunges at Davian with a dagger, Davian defends himself, killing the man. The others, impressed by Davian’s skills, allow the boys to leave with their winnings and cover for them.

Wirr and Davian discuss the ethics of their actions and debate whether the man deserved to die. Wirr believes the death of the Hunter was justified as self-defense, but Davian is sickened to have killed a man. He wishes all the Tenets were abolished so they could use Essence without restrictions and just steal coins and fight back. Wirr objects to stealing from ordinary people, arguing that tricking the gambling Hunters was different. Wirr wonders if the Augurs’ tyranny and the corruption of the Gifted could have been avoided with more regulations.

Wirr and Davian review the four Tenets and discuss whether they would abolish all of them. The First Tenet forbids Gifted from using Essence to harm non-Gifted. The Second forbids deceiving non-Gifted. The Third forbids the Administrators and Gifted from harming each other, and the Fourth requires the Gifted’s complete obedience to the Administration. Davian argues that given their hated status, he would revise the first two Tenets to allow Gifted to use Essence in self-defense. They both agree on keeping the Third Tenet and abolishing the Fourth. Wirr concludes that having superior powers and longer life spans are not mandates to rule. Davian investigates his bronze box and sees the repeated outline of a wolf. He suddenly realizes that he knows where to go.