A/N: Thank you for the comments.

Guest (1) - I generally don't write relationships and I have none planned for this story. If one (or two) naturally emerge from the plot then I'd consider running with it. But right now there nothing planned.

Guest (2) - Juru will be discussed later on. There will be fight, but more of a scuffle with Ruby.

Guest (3) - Two mighty big assumptions

Guest (4) - Again I don't get the (mass) defection as the agents were hand picked and have been saved by aliens many times. The odd one yes, but multiple seems unrealistic. At least there were far better times for it to have happened.

Guest (5) - Seeing Supergirl proved conclusively that she can't fly properly without a cape in S1 I assume the suit will be very short lived. It will be interesting to see if the duplicate has the same problems.

Ruby found herself standing in a dark alleyway gripping something firmly in her hands. Looking down she realised it was a knife. A knife that, like her hands, was covered in blood.

"Mom?" She called, her voice shaking. Getting no response and having no idea where she was she reached for her phone only to realise she was wearing pyjamas. Feeling the panic build inside her she stumbled out of the alleyway, clinging to the knife. Seeing a payphone she ran to it before realising she had no money. Pausing she tried to remember any film she had seen involving payphones so she could work out how to place a collect call. When she finally made it through to the operator she gave them her mother's cell phone number and waited and waited. When it just rang out she slammed the phone down in frustration before taking a deep breath. Trying to remember another number she picked up the phone and gave them Alex's number.

"Hello?" A strange, but familiar voice greeted.

"I need Alex." She blurted out.

"Agent Danvers is busy. Can I assist?"

"I need Alex. I don't know where I am. I can't reach mom. But I have knife and there's blood. I don't know why. I'm scared."

"Is this Ruby?" The voice asked.

"Yes…where's Alex?" Ruby asked.

"She is busy, but Supergirl will be with you soon."

"How? I don't know where I am?"

"That is not a problem. I have located you."

"I'm scared." Ruby confessed.

"Understandable you are in an undesirable part of the city," The voice said.

"That doesn't make me feel better." Ruby said happy to focus on the voice rather than the city around her, even if the voice did not have much tact.

"Oh. You want comfort and reassurance." The voice said. "I am not the best qualified for that and I am not very good at lying...but I could distract you by asking questions."

"Like what?" Ruby asked.

"Are you hurt?"

"No."

"Do you remember what happened?"

"No….this isn't making me feel better." Ruby complained.

"Ruby?" Supergirl called as she landed in front of the payphone.

"Supergirl?" Ruby asked.

"Are you okay?" Supergirl questioned.

"I don't know. I don't know where I am. I had a knife. It had blood on. I don't know whose."

"It's okay." Supergirl said calmly. "But I need to take you to the DEO."

"I want my mom." Ruby said.

"I know." Supergirl said. "She's at the DEO already."

"She is?"

"Yes." Supergirl said, neglecting to mention why. She then stepped up to Ruby and lifted her up before flying to the DEO.

-00-

"Alex? Where's mom? Supergirl said she was here." Ruby said when Alex finally entered the room she had been put in.

"She is." Alex said. "But she's hurt."

"How bad?" Ruby asked panicking.

"She had to have surgery. But she'll be okay." Alex said.

"Was she attacked?"

"Yes." Alex said as she sat down next to Ruby. "Can you tell me what happened?"

"I woke up in an alleyway. I had a knife."

"Okay, let's go back. What do you remember about last night?" Alex said.

"We were at Lena's. We were playing games and then mom said it was past my bedtime. I wasn't tired but she had her 'don't mess with me' look so I went to bed anyway."

"Then what?" Alex asked.

"I was in the alley." Ruby said looking confused. "Was it mom's blood?" She asked looking down at her hands that she had scrubbed.

"I think so." Alex replied.

"What happened to her?"

"We're trying to figure that out." Alex said.

"Can I see her?"

"Not yet." Alex replied. "I need to go and check on her, but I'll be back soon."

-00-

"What do you think?" Lena asked as Alex entered the room she, James and Kara were waiting in.

"Guys." Kara interrupted. As Lena, James and Alex turned to face her she pointed to her ears and mouthed. "Superhearing."

"One step ahead of you." Alex said. "Her room is sound proof, even to Kryptonians. She can't hear anything."

"You have one of those here?" Kara asked getting distracted.

"The point is we can talk freely." Alex said. "I don't think she knows."

"I agree. Could she have been sleepwalking?" Lena asked.

"Sleepwalking I get, but sleepstabbing?" James asked. "How sure are you that there isn't a Kryptonian cult at play?"

"Not at all sure." Alex said glancing at the monitor that showed the CCTV feed of Ruby's room. "But the behaviour, the missing time does sound a lot like Reign."

"We need to move Ruby to L-Corp and keep her contained, without her knowing." Lena said.

"Or we tell her the truth." Alex said.

"You want to tell her that she stabbed her mother?" Kara asked.

"She's going to find out anyway. If we tell her she'll be more cooperative. After everything she went through I believe she is strong enough to know." Alex argued.

"Alex is right. If we hide it from her we don't know how show will react when she finds out. If she is being taken over by a Kryptonian experiment and is turning into a Worldkiller it could make her unpredictable and dangerous." Lena argued.

"Right now we don't know what the cause is, but we need to figure it out. Telling her is the fastest way to do that." Alex added.

"Who's going to tell her?" Kara asked.

"I'll do it." Alex volunteered.

"Are you sure?" Kara asked frowning. "One of us could."

"Or Supergirl." James added. "Ruby does worship her."

"No, I'll do it. I owe her that much." Alex said leaving the room.

-00-

"Hey." Alex said entering Ruby's room.

"Can I see mom yet?" Ruby asked.

"Not yet. I'm sorry." Alex said walking towards her.

"What's happening? Have I done something?"

"Why do you think that?" Alex asked.

"I'm locked in a room and I can't hear anything from outside."

"Sorry." Alex said. "I didn't want to scare you."

"What have I done?" Ruby asked.

"You know how you have been sleepwalking?" Alex asked.

"Yes."

"You did it again last night. Lena found you standing over your mom with a knife."

"I stabbed mom?" Ruby asked eyes wide.

"We don't know for sure. But probably." Seeing how upset Ruby was looking she added. "She's going to be okay."

"Why can't I remember? Why was I in an alley?"

"We are still trying to figure that out. What we do know is that when Lena approached you, you jumped out of the window."

"But that room was twenty floors up." Ruby said.

"I know." Alex said. "Fortunately you survived. But we haven't figured out how or why yet."

"Am I turning into a Worldkiller?" Ruby asked.

"I can't answer that. Not yet. Which is why I want you to go with Lena to somewhere you'll be safe and others will be too."

"Will you come and visit?" Ruby asked.

"Of course I will. And if we don't figure it out soon your mom will visit as well." Alex said as she hugged her.

"I'm scared." Ruby confessed as she clung to Alex.

"I know. But you are not alone."

-TBC...

A/N: Thanks for reading and reviewing.