Four: A Divergent Collection

16-year-old Tobias Eaton, at his father, Marcus's instruction, picks the choices that lead him to pass for Abnegation during his Aptitude Test. His meeting with a factionless man who seems to know his deceased mother, however, startles his choice, especially when the abusive Marcus beats him for lying about a gift his mother gave to him. Tobias eventually chooses Dauntless on Choosing Day, shocking Marcus.

Tobias is introduced to his instructor, Amar, and his fellow initiates, including Erudite transfer Eric. In a slight change, the initiates now have to face their fears right after making the jump from the roof. Tobias' four fears: his acrophobia, claustrophobia, remorse for shooting innocents, and his father's abuses, astonishes Amar. Since no other Dauntless has that low of a number of fears, Amar gives Tobias his new name: "Four".

The cover of The Transfer features a circle of train cars, which are colliding in two different places.[23] Joel Tipple, who designed this cover, is also designing the covers for rest of the series.[16]

BiblioFiend in its review said that "The Transfer gave an immense amount of depth to a character who always seemed so secretive and hard. Getting inside Four’s mind was a great way to understand his motives and reasoning for choosing to leave Abnegation."[24]

Tobias "Four" Eaton goes through his Dauntless initiation tests. His first task has him forge a Dauntless tattoo. His next task is to fight his archrival, Eric, whom he manages to defeat. As he begins bonding with his Dauntless-born fellow initiates, Ezekiel "Zeke" and Shauna, he begins to forgo his isolationist and quiet Abnegation principle and starts embracing the lifestyle of a Dauntless.

In Four's next test, he faces his fears again, but manages to recognize that it is artificial and escapes from it in an unorthodox manner. Amar tells him that he also passed his test like Four, warning the latter not to do the test with that method again. The two are forced to do the test by Erudite leader, Jeanine Matthews. Though Four is careful, Amar is found dead a week after, which everyone but Four attributes to suicide. Four threatens Eric for his supposed part in causing Amar's death before the test announcement, in which Four ranks first. While celebrating his achievement, Four sees what appears to be his mother boarding a factionless train in the middle of the night.

The cover of The Initiate features a circle of syringes filled with blue coloured serum, all of them pointing at the centre of the circle. Like all the previous covers in the Divergent trilogy, Joel Tipple designed this cover.[16]

The recently initiated Dauntless member, Tobias "Four" Eaton, is offered a chance to be promoted to the position of leader by Max, competing with his archenemy, Eric. He suspects that something foul is going on ever since the mysterious death of his mentor, Amar, for being a Divergent, which he links to Erudite, led by Jeanine Matthews, controlling Dauntless for a secret purpose. At the same time, he receives a note which leads him to reunite with his factionless mother, Evelyn, long presumed dead. Though their meeting is rough, Evelyn tells Four that there is a conspiracy going on and that she is still welcoming him to join her.

Four eavesdrops on Max's conversation with Jeanine which confirms his suspicion that Jeanine intends to use whomever is selected to be leader as a pawn. He intentionally fails during the final interview for the job in favor of becoming instructor for the new initiates. This allows Eric to win and implement his harsher suggestion for the next initiation tests. Four then decides to keep contact with his mother by delivering her a letter through an aide: the factionless man whom he met after his Aptitude Test several weeks before.

The cover of The Son features a circle of dark inky cloud, with lightning striking at two different points of circle. Like all the previous covers in the Divergent trilogy, Joel Tipple designed this cover.[16]

Two years after the events of The Son, Tobias "Four" Eaton is working as the instructor for Dauntless transfer initiates, including Tris Prior. For two years, he has been secretly spying on Max and Jeanine Matthews and keeping contact with his mother, Evelyn. Four learns that Max and Jeanine are planning on an invasion to Abnegation. Evelyn responds nonchalantly when Four brings it up, and makes Four reconsider his position on his old faction.

Throughout the story, Four begins to get closer with Tris, helped by his admiration of her bravery and selflessness. He becomes protective of her, growing concerned when he learns that she is also a Divergent, and also saves her from an attack by her desperate fellow initiates. He also eventually allows her to know more about him by going through his fear landscape together. Four realizes that he will have to betray his new faction to protect his old faction: by attempting to warn his father, Marcus, about the upcoming invasion, which the latter quickly brushes off. Seeing another option, he looks to Tris for assistance.

The cover of The Traitor features a greenish circle of crows flying away. Like all the previous covers in the Divergent trilogy, Joel Tipple designed this cover.[16]

Four - Tobias

Four, in his second year as instructor, is waiting for the initiates to jump through the hole into the net of rope alongside his fellow instructor, Lauren, who bets that the first jumper is yet another Dauntless-born initiate. Surprisingly for the two of them, the first jumper is a transfer, and a 'Stiff;'Abnegation. When he asks for her name, she hesitates and he feels she is familiar to him in some way. She eventually answers "Tris", and Four then proclaims, "First jumper–Tris!".

Four introduces his pupils to the Pit. When the curious Candor transfer, Christina, bogs him on questions about his name and the Pit, he answers coldly in an attempt to make his pupils more serious about Dauntless. During the introduction in dinner, Four sits next to Tris, Christina, Will, and Al. Eric acts friendly to him and dismisses Tris as a "Stiff", prompting Tris to question about Four's old faction. He again responds coldly, but to his surprise, she gives a bold response. He responds back with "Careful, Tris" and leaves, realizing that Tris is the daughter of his father's friend, Andrew Prior.

Four is drunk with Zeke and begins laughing at a silly joke near the Pit. He approaches Tris, who is with her friends, and begins flirting with her. She puts up the defensive, but when Four interjects with "You look good, Tris" while touching her, she laughs and says that he should do that while sober, obviously embarrassed. While he is talking with Tris she mentions that he should not be near the Pit while being drunk and Four winks and says he would do what she said. Four then thinks that being close with Tris helps him better to escape the harsh reality than alcohol.