
Chapter 13 of Attack on Titan ends volume 3 with the Trost operation on the edge of collapse. Eren's berserk Titan swings at Mikasa instead of hauling the boulder, the Garrison escort argues over abandoning him, and Armin gambles on cutting into the Titan's nape to drag his friend back to his senses.
Atop the Wall, Dot Pixis hears the cost of his diversion: roughly a fifth of the men drawing Titans toward the corner are dead. He accepts responsibility without flinching, willing to be remembered as a mass murderer if the species survives. Below, the operation's centerpiece is failing. Rather than lifting the boulder, Eren's Titan swings on Mikasa, cutting her cheek, and when she perches in front of his face to reach him he throws another punch that nearly severs his own head before he slumps onto the rock. Rico sends up the red flare admitting the mission has gone wrong, and Pixis, watching the smoke rise, rejects his officers' suggestion to pull everyone out.
On the rooftops the escort fractures. Mitabi and Rico argue for falling back to the Wall and leaving Eren where he lies, which brings Mikasa's blade halfway from its sheath before Ian steps between them. Ian rules that they will hold the position and cut down the Titans wandering in, reasoning that what Eren could mean for mankind justifies dying here; Rico, pressed for a better plan, concedes she has none. Privately, Ian admits to Mikasa that her hand on the sword frightened him, then frames the new orders as her chance to fight for the person she loves. She answers that Eren is family, then studies him with growing worry: his hands have not regrown, and the accumulated damage may be straining whatever lets him return to human form.
Armin arrives as more Titans converge, and Mikasa realizes with alarm that Eren himself is what draws them. Recalling how Eren first emerged from a Titan's weak point, Armin measures the nape, drives his blade in until it bites Eren's arm, and gets an immediate reaction. He sends Mikasa off to hold the perimeter and shouts down into the steaming flesh, reminding Eren of the mission, of his murdered mother, of his vow to destroy every last Titan. None of it lands. Inside his own mind Eren sits at the family table with Grisha, Carla, and a young Mikasa, unwilling to leave the illusion.
The boulder plan stalls when Eren's rampaging Titan attacks Mikasa instead of advancing, and Rico's red flare officially marks the operation a failure.
Ian Dietrich overrules calls for retreat and commits the escort squads to defending the incapacitated Eren against the gathering Titans.
Mikasa observes that Eren's Titan is failing to regenerate, and later realizes the approaching Titans are being drawn to him.
Armin stabs into the nape, wounding Eren's real arm, and begins trying to shout him out of a dream of his lost family.
The chapter closes volume 3 as its fourth installment, running in Japan on September 9, 2010 and in English on December 4, 2012. It belongs to the Wall Sealing arc, between Icon and Primitive Desire, and the anime adapts it as Wound: The Struggle for Trost, Part 8, the near-identical title behind the disambiguation notice.
Japan also received a full-color version of this chapter through the booklet Attack on Titan: Full-Color Special Edition.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
Titan bodies normally regenerate, but in the "Wound" chapter Mikasa notices that Eren's Titan hands have not grown back after battle, worrying that the damage he has taken is straining whatever lets him return to human form.
In "Wound," Eren's rampaging Titan swings at Mikasa instead of lifting the boulder to seal the Trost gate, and Rico Brzenska sends up a red flare signaling that the operation has failed.
When Mitabi and Rico argue for abandoning Eren and falling back to the Wall, Ian Dietrich overrules them, committing the escort squads to defend Eren against the gathering Titans because of what his power could mean for humanity.
Armin drives his blade into the nape of Eren's Titan, wounding his real arm in the process, then shouts into the steaming flesh trying to remind Eren of his mission and his murdered mother to snap him out of a trance.
Dot Pixis learns that roughly a fifth of the soldiers drawing Titans toward the corner have died, and he accepts responsibility for the losses, saying he is willing to be remembered as a mass murderer if humanity survives.
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