Kara's heat vision sliced across the asteroid, slicing off several chunks of rocks which scattered away from the larger one. She continued to blast it, attempting to turn the asteroid into small pebbles or even dust. She put on a burst of speed and punched clean through it, leaving a gaping hole in the center which glowed with green energy. A pulse of green caught Kara by surprise, and she opened her mouth in a silent scream.
"Kara," Alex said through her sister's earpiece, "You ok? I lost your video feed. What's happening up there?"
Kara could not respond, her vision was fading and she felt like she was suffocating. Recovering just slightly she managed to choke out a comment into the mouthpiece.
"Kryptonite," Kara choked out, "The asteroid is lined with Kryptonite."
"Get out of there, Kara. We'll find another way to stop this thing," Alex ordered.
"No, Alex, there's no time," Kara said as she flew far enough away to not be under its effects anymore, "If we wait now it'll be too late. I'm sorry Alex. It's up to me to stop it."
The video feed from Kara returned, just in time to see the Kryptonite lined asteroid flying closer.
"Kara! Stop," Alex shouted but the blonde just ignored her and turned off her audio feed.
A blast of heat vision sliced through the asteroid, and one of the chunks flew towards Kara. She barely avoided it, and not even completely. The rock clipped her shoulder, slicing it open. She cried out in pain, blood oozing from the wound. A flash of blue flew past the camera screen, presumably Kara clutching at her wound. Kara's audio feed came back online just as another chunk of rock smashed into the camera.
"Alex listen to me," Kara said, "I can feel it. I'm over-taxing my powers I know. But there's no other way. Anything else we could do to stop this would take too long. I've destabilized it a bit, but it's going to take more to bring it down. I promise you that I will come back to Earth as soon as it's safe and the asteroid has been neutralized. I love you, Alex. If I don't make it back, I'm so sorry. I love you so much, and we will meet again."
Kara's audio feed went silent again.
Kara boosted her speed, crashing heavily into the asteroid again. This time she was more prepared for the Kryptonite assault, and she released a blast of powerful heat vision through the center of the asteroid. It began to crumble and she boosted again, this time firing a final blast that brought it down to a size that would be destroyed on re-entry. She blacked out.
Alex's stomach exploded with pain. The first thought that crossed her mind was that something had happened to Kara.
"Kara! Can you hear me? Kara!"
Alex remembered then that her sister's audio feed was off.
"Get me a visual on Kara," Alex ordered, "I need to see her."
"Agent Danvers," Vasquez said, "we have an unidentified object falling from the sky above China, too small to be any kind of craft. I'm trying to get a better visual but it looks like it may be Supergirl."
Tears formed unbidden in Alex's eyes.
"Kara," she sobbed, "Why did you have to be such a hero?"
She sank to her knees, holding her head in her hands. Director Henshaw sat beside her.
"I may not have been as emotionally attached to her as you, however I cared about her. I feel her loss too Agent Danvers. She wouldn't want us to grieve for her, she'd want us to just keep on doing our typical things and being happy," He said gently.
"How can I be happy though? I mean I know we don't know for sure but Kara told me she was over-taxing her powers, she might have lost her powers while in space," Alex snapped.
"I...I'm sorry Alex."
"Agent Danvers, Director Henshaw, we have confirmation. The unidentified object falling from the sky was in fact Supergirl. She just crashed into the Great Wall, took out about half a mile worth by reports from Chinese border patrols," Vasquez said.
Alex lost it then, storming off and out of the base.
Alex rapidly fired every round out of her side-arm into the target.
"I can't believe this," she said as she angrily slammed a new clip into her weapon and racked the slide back.
She holstered her pistol and walked to the heavy bag that hung nearby.
"Kara Danvers," she shouted as she punched the heavy bag, "such a well meaning idiot sometimes! Too good for her own wellbeing. Perfect. Beautiful. Smart, funny, compassionate. I was in love with her and I couldn't even tell her..."
Her final punch sent the heavy bag flying off the chain.
