Ruler of the Walls (Chapter)

 is the 68th chapter of the Attack on Titan manga, written and illustrated by Hajime Isayama.

Summary
The Garrison continues the evacuation of the citizens of Orvud District under the facade that it's just an exercise training. However, some citizens are suspicious about why there is such exercise in the northern region of Wall Sina, the safest place within the Walls, and believe that the military is just trying to show off their power to the people after the coup d'état.

At that moment, a large column of steam appears at the other side of the wall as Rod Reiss gets closer, and the Garrison starts firing the cannons. Erwin and Squad Levi observe how the efforts of the military are useless since the Titan recovers from all injuries and keeps approaching. Erwin comments that they will never hit the nape of the Titan from that angle, and that the Garrison from the northern part of Wall Sina is much less experienced than its counterpart on the front lines of south Wall Rose, but that's the best they have for the moment.

Hange Zoë appears bringing a large amount of gunpowder, ropes and a net for Erwin, as well as wheelbarrows charged with more gunpowder and equiped with spikes like if they were large versions of the Three Dimensional Maneuever Gear. Levi, Jean, Sasha and Connie take their positions to attack Rod, while the others gather gunpowder barrels into the net.

Erwin asks Historia to stay away, since she is going to be the next queen and it would be problematic if something were to happen to her, but she questions if people are really so naive to obey a ruler in name only. She then states that she has found for herself the mission she has to carry out and prepares to fight.

As they talk, Eren watches in silence and thinks about how strong she has become, and how weak he is for thinking that he was special and that the sacrifices of the soldiers who died for his sake were "unavoidable".

He then notices three kids who are watching them from the distance, and comments to Armin that if Rod reaches the Wall, those kids are going to see the exact same thing they saw 5 years ago. However, Armin points out that unlike that day, now there are soldiers that can fight back, and those soldiers are themselves. As Eren remembers the scene of the Smiling Titan about to devour his mother, Mikasa complains that it's no time to be standing around, and Eren punches his own face in frustration for being so useless and pathetic.

Rod reaches the wall, and the Garrison prepares to shoot his nape now that the angle is adequate, but suddenly the wind changes direction and they are covered by the cloud of hot steam. When they recover the sight of the target, it's too late: Rod is stretching out his hands over the wall and is standing up. Eren's prediction comes true as the three kids watch in horror the smoky hand of the Titan over the wall and then his deformed body standing.

The citizens flee in terror and even the Garrison retreats, but Squad Levi takes the command and throws barrels of water on themselves to endure the heat emitted by Rod's body. The three kids try to flee but stop after seeing Eren transforming into Titan on top of the wall.

At Erwin's signal, Squad Levi launches the wheelbarrows with gunpowder to Rod's hands. The gunpowder explodes on contact with the extremely hot body of the Titan, destroying his hands and making him lose his balance. Then Eren runs to the head carrying the net with more gunpowder barrels, and throws it into the Titan's mouth. Rod's head explodes and Squad Levi begins slicing the pieces that are flying around, trying to find the piece corresponding to his nape and cut it. Historia attacks too and cuts the right piece.

As she slices her father's nape, she sees memories of a young Rod jailed while he demands explanations from his father for not killing the Titans despite having the Coordinate, and of Uri and Frieda before inheriting it, expressing their desire to save humanity.

Rod's Titan body explodes and Historia falls on a cart. As she regains consciousness, she finds herself surrounded by the shocked citizens, who recognize her as the one who finished off the Titan but wonder who she is, since she is wearing casual clothes instead of a military uniform. She stands up and tells them that she is Historia Reiss, the true ruler of the walls.