"Please…Don't make them watch," Korra pleaded, looking at the now recovered brothers. "Don't put them through that!" She was crying again, tears streaming down her face. Amon laughed and said, "Oh, but what fun would that be? Take the wall down." The command was followed a second later as a soft screeching began. The glass wall slowly slid away, allowing the two rooms to join together.
"Korra!" Bolin and Mako shouted together. Naga barked and started to tug again. Korra gasped, "Naga, don't-!" The polar bear-dog yipped as she got shocked again. "Naga!" The Avatar started to pull at the chains holding her down. "Let me go! Stop it!" she shouted.
"Break her!" Amon commanded. A moment later, both Mako and Bolin were being shocked and Korra froze when she heard their agonized screams. After a few seconds it stopped and both brothers were lying on the ground, unconscious. "Stop! Please!" Korra cried. Amon ignored her. Two chi-blockers came in with chains and thick wires. Korra watched in terrified silence as they pulled her to her feet and started to tie her so she couldn't run. She tugged at the wires holding her arms, flinching when Amon touched her shoulder. "Don't try to struggle," he told her. "You'll only make things worse."
"How much worse can things be?" Korra snapped. "Why are you doing this?"
"To stop the Avatar line," he stated. The girl looked horrified at this revelation. She struggled again, desperately trying to free herself. "It's no use," Amon said, "You're trapped. You can't use your bending, your friends and pet are chained. You're at my mercy. Too bad I have none." He waved at Naga, who had begun to growl loudly. The chain lit up and the creature let out a terrifying cry.
Amon looked at Korra. He could tell it was working. She was starting to break. "Don't kill it. Not yet," he then said, turning back to Naga. The current stopped and Naga fell to the ground. "I'll continue this until I get what I want, Korra," Amon told her. "Even if I have to kill them."
That did it. That broke her. "Don't. You. DARE," she growled, eye beginning to glow. "You kill them, and I'll END you."
"Yes, that's what I want. Almost there," Amon said. "One more time should do it." The chain on Naga jolted to life, and the dog yowled again, the noise fading a few moments later as her head dropped and hit the floor. "STOP IT!" Korra shouted, the ground underneath her starting to shake. The collar was going off, but it didn't stop the girl from going over the edge. It sparked and started to smoke before breaking into pieces.
"Perfect. In a few seconds, you'll be gone, Avatar," Amon voiced, standing calmly at her side. Said Avatar's glare settled on him, the chains and wires holding her down starting to snap and break. The air began to swirl around her, ripping pieces of the wall off and reducing the chains holding Naga and the brothers to scrap metal.
"After I kill you, your friends are next," Amon told her quietly, knowing that that would evaporate any bit of control she had left. She lashed out, sending rocks and bits of chain at him. He dodged them easily and was inches from Korra in a matter of seconds.
Mako and Bolin had come to and they stared in horror at Korra. "No…" Bolin murmured. "K-Korra…Mako, we h-have to help."
Mako looked at his brother. What could they do? He turned back to Korra, her glowing eyes staring at Amon as the wind lashed out, carrying debris. The firebender opened his mouth to call her name, but stopped. Instead, he and Bolin watched as Korra lifted her arm, the air swirling around her hand, ready to be released for an attack. She was about to let the wind and rocks crash into Amon when a blade appeared from his glove.
The brothers watched, frozen, as it pierced Korra's chest. The air abruptly calmed, the girl's eyes stopped glowing, and she fell to the ground. Amon pulled the bloodied blade free and ran it along his sleeve, leaving a crimson mark on the fabric. "Goodbye, Avatar Korra," Amon said before turning to the door and leaving.
Mako and Bolin got up, letting out gasps of pain as they did so. They looked at each other, and Bolin nodded to Korra. The earthbender went to check Naga, while Mako made his way to Korra. Falling to his knees, he gazed at her, all words lost. His eyes locked on to the wound on her chest, the blood slowly soaking her shirt and making a small pool on the ground. Bolin appeared at his brother's side, Naga shakily making her way over with him.
"Bolin…she's…." His voice caught in his throat. "…Gone," he choked out. Bolin whimpered and they sat in silence. Amon had won.
Korra, the Avatar…was dead.