There is a scene where Suyin is in one of those robot things with her sons by her side in the trailer of season four and she looked like she was about to do something she was going to regret. So this is what I tought up of.
"Suyin what are you doing?" The woman asked taking a few steps back as she saw her sister in one of those robotic suits. Her son's flanking her side's.
"I'm so sorry Lin." She said. Her head bowed in shame and she let her eyes fall. Her older sister let her arms fall by her sides, she knew what this meant. Everyone one that she knew was getting killed off and she couldn't do anything about it. Tenzin and his family had flown away on the Bison. The last time she saw Korra and her friends, Mako was already dead and Bolin had offered to be the next to go, giving Asami, Korra, and Lin a time to run.
She had pleaded with the younger boy that she would be the one that would be left behind. She was already old, however he was young and was in his prime. He should leave with the girls and try to find to way to stop the hell that had over come their lives. All he did was give each one of them a hug and a kiss on the cheek and ran off, still with a smile on his boyish face.
"So I'm next?" Was all she could say. Lin was tired and beaten. She was tried of being the reluctant hero. She lost to much to care for her own life at that very moment. Her body was numb, her face no longer showing that will to fight. Her once bright, beautiful green eyes dimmed like a light and her body grew cold and she could feel the cold grip of the Grim Reaper taking a hold of her bitter soul, ready to rip it out when the last air left her lungs, the last of her blood dripped from her veins.
She stood in the middle of the room, where she had hoped to find a small haven, but she had been wrong, her back was straight and her hands up into fists. The armor that covered her strong body felt heavy and cold, no longer did it seem like a weapon but just something that would slow her down.
A sob was heard from Suyin and then the mechanical arm of the robot reached out to Lin as if about to drag her to hell. Sparks shot out from its metal fingers ready to attack. Lin closed her eyes.
"I have to do this or else she'll kill my family!" The younger sister cried as if that would justify why she would be taking the life of her own sister.
"It's okay..."