Kara held Alex's hand tight as she watched the DEO nurses attached wires, oxygen and took samples of Alex's blood. Doctor Morrell reached over Alex and lifted one of her eyelids. He dropped his torch and jumped back.

"What is it" Hank asked

Dr Morrell quickly composed himself "Her eyes, there black."

Kara gently opened one of Alex's eyelids "They look normal" Kara said. Dr Morrell frowned and checked Alex's eyes once again.

"I'm sorry, I thought I saw; never mind" Dr Morrell said as he continued to exam Alex. Suddenly Alex flew forward.

"Alex" Kara said as she wrapped her arm around her "Are you ok"

"What happened, how did I get here" Alex replied as she tried catching her breath

Kara sat at Alex's side; her arm still around her shoulders "You don't remember" Kara asked. Alex shook her head.

Hank moved to the end of Alex's bed "What's the last thing you remember" Hank asked.

Alex thought hard "Erm, I remember coming to work this morning and" Alex frowned as she thought harder "That's all I remember."

Hank and Kara exchanged looks of concern. "How are you feeling?" Kara asked.

"Ok" Alex replied. Her limbs and chest felt heavy and her head was a little fog but there was no pain.

Hank didn't believe Alex; he turned to Dr Morrell "How is she doc?"

Dr Morrell checked the ops machine "Everything looks ok but I would still like to send Agent Danvers for a CT scan while we wait for her blood results to come back."

Hank nodded as Dr Morrell and the two nurses left the room.

"There's no need for the CAT scan, I feel fine" Alex said

"But you don't remember what happened" Kara replied

"I properly just hit my head or something"

"And that's why your having a CAT scan" Hank said

"Director Henshaw" Agent Reynolds called from the door "We have a problem down in the holding cells."

"Will you take Alex for her CAT scan" Hank said to Kara before leaving the room.

Kara stood and helped Alex to her feet. "What are you doing?" Kara asked as she watched Alex pull on her DEO uniform.

"There's no way I'm walking these corridors in a hospital gown"

"I was actually going to push you in the wheel chair" Kara replied as she pointed to the folded chair in the corner.

"Not a chance" Alex replied as she pulled on her boots

"You are the world's worst patient"

"Look who's talking"

The two sisters headed down the corridor. Suddenly Alex's head erupted in pain and she fell against the wall.

"Alex!" Kara held her sister up against the wall. She was about to call for help when Alex finaly lowered her hand and opened her eyes.

"I'm ok" Alex said as she glanced around

"No, you're not. I'm calling for Henshaw" Kara replied

"Wait" Alex said as she held Kara's arm "I need to tell you something; please come with me"

"I need to get you..." Kara began

"Please Kara" Alex interrupted.

Kara sighed before following Alex into the DEO training and waited for the door to close "Are you ok" Kara asked. Her voice full of concern.

"I'm fine; Alex however wasn't so lucky"

"What do you mean" Kara asked confused. She watched Alex reach for the kryptonite controls on the wall and rushed over but she was too late. The room lit up green and Kara dropped to her knees "Alex" Kara panted "What are you doing?"

Alex walked over to Kara and knelt down in front of her. "Your sister is in here with me. Trapped inside her own body. She's putting up a fight but she will lose; they all do."

Kara looked up; the pain was excruciating. "Who are you?"

"My name is Faora"

"What do you want with Alex?"

Faora smiled "My own body sustained injuries when Fort Rozz crashed on Earth; I was able to possess a fellow inmate but his body grew weak and eventually died. I was forced to look for another vessel." Faora smiled to herself before continuing "Although humans are weak, there are more than enough to ensure my survival."

"You jump from one body to another." Kara said

"Exactly" Faora replied "I share the memories and knowledge of each vessel and I can tell you this vessel cares deeply for you"

"Her name is Alex" Kara spat.

Faora turned away from Kara and headed back over to the controls on the wall.

Pain erupted through Kara's body as she fell onto her back gasping for air. She turned her head in time to see Faora leave the room.