"Halley, wait!" Kara called out, standing up and wincing in pain again. Alex tried to pull her back but she was already half out the door. She chased after her, limping and holding a hand to her stomach. "Where are you going?"

"To find my sister," Halley responded coldly as she continued walking towards the exit.

When Kara caught up to her, Alex close behind, she grabbed her arm and spun her around. "Halley, please listen to me."

"Why?" Halley asked, looking at Kara. Her blood boiled and heart was beating faster than any human's ever could. A few flames sparked from her hands in anger. "What could you possible have to say that will make this better?"

"I'm sorry, I really am. Your sister is a lot more headstrong than you let on. I thought I could get through to her and-"

Halley cut her off. "That wasn't your call to make, Kara! You think that "S" on your chest gives you a free pass to do whatever you want? It doesn't." Halley turned and started walking again, Kara hobbling past her as best she could.

"Hey!" Kara blurted. "I made a mistake, okay? But you shouldn't go after her alone."

Halley was coming up to the exit and didn't turn around as she replied, "Watch me," before slipping out the door.

"Should we follow her?" Alex asked, now standing next to her sister.

Kara sighed and turned to face her. "She's angry and hurt. There's no point."

Another sharp pain shot through her stomach and she grunted through gritted teeth.

"Okay," Alex said as she put her arm around Kara's back as support. "I trust Halley will be fine until we find her. You on the other hand, need to sit down." They slowly started walking back to the testing room, Kara continuously looking back at the exit.

Scanning the park, Halley stood at the exact spot where they had found the first star symbol. She was kicking herself for brushing off the idea that Skye may have been here. If only she had looked into it, maybe she would have talked to her already and Kara wouldn't be injured.

Whatever. It's Kara's own fault. Halley thought.

She didn't see Skye anywhere, so she walked further down the path. Her eyes darted back and forth from the ground, searching for any clues, then back up to look around the area. An ocean of questions swam through her head. How was Skye on Earth? Why wasn't she trying harder to find Halley? What did she want? Halley had no answers to any of them, becoming frustrated. A soccer ball rolled over to her, a couple of kids chasing after it. Halley picked it up, the children waiting for her to throw it back. She smirked, then lit the ball on fire. The kids backed away and started yelling for their parents. The ashes fell through her fingers onto the ground and she continued walking. She didn't care anymore. Not about how well she had been doing, or about those kids, or about Kara. Skye was in the city somewhere, and if Halley was going to find her, she had to think like her. She couldn't play nice.

Kara eventually convinced Alex that she was well enough to leave the DEO. Alex hesitantly agreed, but made her promise that she wouldn't fly or fight anyone for at least a day. She drove her sister back to her apartment, where the two of them composed a plan to find Halley.

"She knows this entire city like the back of her hand. She could be anywhere," Kara said.

"Chances are, she's not far from here," Alex stated. "Skye seems to have a liking to the park. Halley probably went there first."

Kara paced the floor, putting her hands on the top of her head in frustration. "This is all my fault."

"Kara, don't blame yourself. You were trying to help." Alex reassured her.

"I know, I know, but if I hadn't kept it a secret and gone after her myself then Halley wouldn't have gotten mad and she wouldn't be out there and-"

Alex stood up from her seat at the island. She grabbed Kara's shoulders and forced her to stay still and look at her. "Stop. This is not your fault."

"Yeah, it kinda is," Kara told her.

Alex shook her head and gave her, her typical "big sister knows best" look. "Kara, you are not responsible for how other people react. Skye made the decision to show up in your apartment and then fight you. And Halley made the decision to walk out. That is not all on you, okay?"

Kara looked at her sister with a furrowed brow then down at the floor. She nodded. "Okay," she said, though not too convincingly.

Behind Kara, the TV screen flashed a couple of shots of a building downtown set on fire. Alex looked past her and Kara followed her gaze. She walked over, grabbed the remote and turned the volume up so they could listen. The reporter explained that it was indeed, an alien attack, and that the building was still currently on fire, but was under control.

Alex and Kara exchanged a look, both seeming to know it was Halley. Alex shook her head. "You're not going there. Not as Supergirl."

"What about as Kara Danvers: the reporter?"

"Then I'm coming with you. As Alex Danvers: FBI agent. "

"Deal."

Kara turned off the TV, she and Alex grabbed their stuff, then went off to the scene.

When they arrived, the fire had been completely extinguished and most of the firefighters and reporters had left. A few police officers remained, trying to control the amount of people in the area. Alex marched up to one, flashed her badge, and stepped under the caution tape. She gestured for Kara to follow, telling the officer she was with her. The two of them were careful to be aware of where they were stepping, but also to look to see if Halley left any clues for them or Skye behind. Unfortunately, there wasn't much to go off of. Most of the building was gone, and anything within 8 feet was also unrecognizable.

"See anything?" Kara asked Alex.

"No, you?"

"No."

Walking around to the back of what was once a structure, Kara could hear someone nearby speaking, and used her super hearing to listen in.

"She was scary. Like, the thing was completely insane. These monsters need to be locked up, seriously."

Kara frowned, feeling bad for Halley. She knew first hand what it was like to be judged and misunderstand simply for being an alien. Though, setting the fire didn't help.

She was too busy listening to notice that Alex had wandered off without her, but heard her call out for her. She followed Alex's voice to a hidden corner, and found her knelt down on the ground. She brushed some ashes out of her way and revealed a star symbol burnt into the asphalt. The initials, "H.A" were in the middle of the biggest star.

"It's only a matter of time before they find each other," Alex said, standing up and looking at Kara.

"Then we gotta find one of them first," Kara replied. "Like, now."

Alex stood up, a light bulb turning on above her head. "What if we leave Halley a message of our own?" She said. "Make it look like it's from Skye so she'll come to us?"

Kara processed the idea for a moment, then she smiled at Alex. "You, are the smartest person I know."

Alex smiled back, and cocked her head, acting modest. "I try."

"She'll probably come back here later to see if Skye responded to hers. We should make it right next to this one," Kara said.

Alex nodded, looking around to make sure no one was around. "Go for it," she told her sister.

Kara took her glasses off and used her laser vision to draw the shapes on the ground. She wrote "S.A" in the corner, then the words, "field by the entrance to the city".

"If we're lucky, Skye will see it too and we'll have both of them together," Alex added.

Kara put her glasses back on, took a breath and looked back at Alex. "Now we wait," she said.

After writing the message, Alex and Kara headed straight for the field. They had no idea if their plan would work, or how long it would take if it did, but they wanted to be ready. Alex still didn't feel comfortable with Kara fighting, so she made sure she had Hank's number ready on her phone if she needed to call.

They waited, and waited, and waited, but there was no sign was Skye or Halley. Alex was about to give up, looking around at the empty scene. But before either of them could, they heard someone come up behind them. They spun around, now face to face with Halley.

"Halley?" Kara spoke, both shocked and disappointed at who she was looking at.

Her eyes were darker than normal, her hands and arms red with fire, and she wore different clothes than what she had left the DEO in. All black. She was a mirror image of Kara when she was altered by Red Kryptonite. It was evident that whatever was about to happen, it would not be pretty.