A guard stood at the doorway facing the cell. The girl inside it watched him carefully, taking in his clothes, weapons, and face.

This place has some serious trust issues. She thought to herself. Giving the man a half smile, she asked politely, "Could I get something to drink?"

No answer. He remained where he was and didn't move. So she tried again, a little more aggression this time.

"I said, could I get something to drink?" Still nothing. She laughed. "Okay, let's try something a little different. The girl with the "S". You call her, what, Supergirl?"

The guard still said nothing. So she continued.

"What's her real name?" This time when she asked, she looked him straight in the eye. A second later the guard looked back at her, his eyes became glassy and cold.

"Kara Danvers," he replied. After a moment, he closed his eyes and shook his head. He seemed to be unaware of what just happened to him.

But she did. She nodded and looked around the cell. "Good to know."

…

"Do we really have to lock her up?" Kara asked, trying to keep up with Hank as he walked quickly through the DEO. Alex followed close behind.

"It's protocol," she told her sister.

"We have no idea who she is. She burned down an entire apartment and put lives in danger. We can't trust her," Hank explained.

Kara stepped in front of him. "She's just a kid."

"A dangerous one," he said. "She could have killed Alex."

"I know but-"

"Look, I understand how you feel but until we know who she is and what she wants, she stays."

Kara realized that Hank wasn't going to give in. She knew he was right though. This unknown alien was clearly a threat, but there was something different about her. Kara's Supergirl instincts kicked in and she felt obligated to help. And if Hank wasn't going to assist, she'd have to do it herself.

When no one was paying attention, she snuck into the room where they were keeping their newly captured alien. The girl sat on the floor in her cell, leaning against the glass wall and looking extremely unimpressed. One of her knees was up to her chest her arm rested on it. She didn't even move when Kara walked in and stood with her arms crossed facing her.

Now that she was standing closer and not in danger, she was able to study the girl. Her blonde hair was a little lighter than her own, her eyes more grey than blue. A few freckles on her small nose. Her expression was the definition of a poker face, but her body language suggested she was quite bored. Kara knew better, though. The girl was a bit jittery, her foot shaking slightly. It was evident she was putting on a brave face. Kara had pulled that move a hundred times before. Neither said a word for a few moments, then the prisoner laughed to herself. "You're the best they got here?"

"What's your name?" Kara asked, ignoring the question. She didn't want to show the slight offense she took from it. When she didn't get an answer, she tried another question. "Where are you from?"

When she still didn't get an answer, she looked at her feet and smiled slightly, hoping to put the girl at ease.

"You know," she started, "The longer we play this game, the longer you'll be in there."

"Maybe I deserve to be in here." The girl said, her sassy tone making it clear that Kara was definitely going to get a run for her money. She gave her a confused look in response, took a breath, then left the room in silence.

Supergirl closed the door behind her, turned around, and saw Alex watching her a few feet away.

"You are not supposed to be in there," Alex said in her big sister voice. Kara gave her a look.

"She didn't tell me anything anyway."

The two walked down the hall together. Kara could almost feel Alex's disapproval, but she knew what she did wasn't that bad. Hank was most likely going to do the same thing, and wasn't exactly going to play the good cop.

"Hank would not be pleased," Alex said, breaking the silence. Kara sighed.

"I know, I know. But what does he expect us to do? Wait around until she begs for us to come in? The sooner we figure out who she is the better."

The two women found Hank, where he was already waiting for them.

"The tests we did on her earlier came back," he told them. "She has some interesting powers. Her ability to create fire is her strongest one. And then there's the lack of pain. It appears she can still be injured, but feels nothing and can heal immediately."

Alex had a flashback to when she had the girl at gunpoint. She told her to shoot her right between the eyes.

Her weakness? She thought.

"She's strong too, as you know," the boss continued. Not as strong as me or Supergirl, but still strong. Then the most interesting of all. She seems to have a psychological ability."

"Like yours?" Kara asked.

"Not quite. The prefrontal cortex on the brain, which tends to increase in activity when we lie, is the opposite for her. Instead of changing when she lies, it changes when other people lie."

Alex placed her hands on the table in front of her and looked down. "So you're saying she detects when people lie?"

"Yes," Hank confirmed. "And there's this." He grabbed a remote nearby, pressed a button, and a video played on the screen. It showed the cell, and how the prisoner took control of the guard. "She can force the truth from people. She knows who you are, Supergirl."

There was silence between the three of them. They all knew this both her identity and DEO could possible be exposed to the public if they were not careful. Kara looked at the two of them. She knew she needed to gain this kid's trust, or no one was safe anymore.

….

Kara walked back into where the girl was being kept. She was still sitting on the floor. "Wanna try this again?" Kara asked.

The girl rolled her eyes and leaned her head back on the glass."What's the point?"

This confused Kara even more than before. "Don't you want to get out of there?"

"Your boss doesn't seem to care what I want."

"He's not here right now, I am," Kara told her. "But he's being cautious. You haven't exactly given us a reason to trust you yet." She waited for a response, and when she once again failed to get one. "We know about all your powers." Silence, so she tried a different approach. "Look, the next person who walks through that door isn't going to be as patient with you. He will make you talk. And he'll find a way to make you feel pain."

The now concerned girl looked up at Kara, but still didn't speak.

Kara pursed her lips, then asked kindly, "Can you at least tell me your name?"

Barely above a whisper, she received a "Halley" from the girl.

"Okay, now we're getting somewhere," Kara said smiling a little more. "Where are you from, Halley?"

"Starhaven."

"Starhaven," Supergirl said, taking a moment to let the new information sink in. "It's a nice planet. "How'd you end up here?"

Halley took a breathe and brought both of her knees closer to her chest and rested both arms on them this time. "Living on Earth is my punishment."

Kara walked over and sat down across from Halley on the other side of the glass. "Punishment?"

Halley didn't respond right away. She got fidgety again and looked at the wall. Kara didn't push her to talk this time. She let the girl figure out what she wanted to say, if anything. After a minute or two, she looked directly at Kara and didn't take her eyes off her as she spoke,

"Everyone on Starhaven has powers that reflect who they are. Their jobs, hobbies, personality. Doctors can cure anything, teachers give students whatever skill they need. I heal myself. I start fires, I get inside people's heads, invade their privacy. I was different, on Starhaven. Got a mix of powers that didn't really make any sense. I was seen as a monster, so that's exactly what I became."

"What happened?"

Before Halley could explain, the door opened and Alex stepped in. "Supergirl, we need you," she said, looking at her sister, then Halley, then her sister again.

Kara stood up, walked over to Alex and whispered, "She was just opening up to me."

"I'm sorry, but Hank is asking, like now."

Kara gave her an annoyed nod, took a step past her, but stopped. She turned and looked at Halley, saw the sad look on her face, and walked over to the code panel next to the cell.

"What are you doing?" Alex asked, both confused and worried. She took Kara's arm but Kara shook her away.

"What's right," she replied, and let the cell door open.