A/N: welcome folks to a new story! New fandom as well. I've been reading a bunch of Chicago stories and decided to try one out on my own. Hopefully you enjoy! I have snippets of actual stuff from the shows, but mainly making this up as I go! DISCLAIMER: I only own the characters I create. All others are owned by the main man Dick Wolf ;)

The Past Comes Back…

Chapter 1

It was the middle of summer in Chicago. That time of year when you couldn't breathe when you walked outside because of the humidity. Hank hated this time of year, the crimes were abundant . It was as if when the temp hit 90 everyone lost their minds. The precinct was sweltering. He stood in the doorway of his office, watching his employees doing everything they could to cool off. Kim and Hailey had their hair pulled up in buns, fanning their necks. Everyone had cups of ice at their desks. Not even water, they didn't need it. The ice was melting fast enough on its own. Hank heard his phone ring so he stepped back inside and answered.

"Voight."

"Henry?" a female voice came over the line.

He did a double take. No one had called him Henry in years.

"This is Hank Voight. Who is this?" he said in his usual gruff voice.

"Its Katie." Was all the caller said. Hank immediately recognized the name and jumped up to shut his door.

"Katie? It's been… how are you?"

"I'm in trouble Hen- Hank" she corrected herself. " I need your help."

The soft voice of Katherin Bend, otherwise known as Katie to Hank, or Kat to her friends, echoed in his ears. Hank hadn't thought about her in years. She and Erin were inseparable when they were younger, so much so that he and Camille basically were parenting both girls. Orphaned at a young age, stuck in foster care Kat had found a partner in crime with Erin. When Hank and Camille had unofficially adopted Erin Lindsay, they also got her sidekick. A scrappy girl back then, Hank wondered how she turned out.

" Meet me at the district, you know where right?"

"I'll be there soon." Came her answer, and she disconnected.

Hank sat back in his chair, his mind ran back the first time he met the young woman.

Flashback

Hank looked at the girl sitting across from him at his dining room table. She was skinny, too skinny. It looked like she hadn't eaten in days. Her blond hair was thin. She had dark circles under her eyes, it looked like she hadn't had a good night's sleep in awhile. He glanced at the girl next to her. Brown hair, just as skinny as her counter part. He had picked the two up after being arrested for a petty crime. Typically they would be going straight to juvie, but he felt his heart break a little when he saw them. He left their names off the report and brought them home. He knew Camille would have been furious with him if he had let them get caught. She was surprised to see him walk in with two teenage girls, but immediately sat them down and started feeding them. They jokingly referred to the girls as their projects. They became clean, healthy and on the right side of the law.

End flashback

The desk phone rang. "Voight."

"Hank you have a visitor downstairs. Should I bring her up?" Trudy Platt, the desk sergeants voice came across the line.

"Yeah. Thanks Trudy." He hung up and walked out to the rest of his team. "Listen up, we have a visitor coming up. She's an old friend, treat her with respect. "

His team members all threw glances at each other but nodded in unison.

"Hank, I've got your visitor." Trudy announced as she walked up the stairs.

Hank had to do a double take. He hadn't seen this girl since she was a teenager, and even though he knew she had aged, he still imagined her as that same skinny girl, needing a meal . Instead his eyes fell to a woman in her 30s. She looked healthy, still the same blond hair and blue eyes he remembered, but she had those same dark circles under her eyes, indicating she hadn't had a decent night sleep. He made his way to her , immediately engulfed her in a hug and didn't let go under he felt her relax against him . He pulled back and she leaned up to give him a kiss on the cheek.

"Hi Henry." She caught herself "Sorry, Hank… that'll take a bit to get used to."

He laughed and wrapped his arms around her again.

The room was in a state of shock. Henry? This woman called Hank by his given name and he laughed? Hank never laughed! What was happening ?? Each of his employees had different thoughts racing through their heads, but none voiced them .

"You can call me whatever you want. It's good to see you sweetheart. You look good." He lead her to the middle of the room where his team had gathered. "These are the fine detectives and officers of the Intelligence unit." He introduced each one . "Officers Kevin Atwater, Kim Burgess and Adam Ruzak. Detectives Hailey Upton, Jay Halstead and Antonio Dawson. And the woman that brought you up here is desk sergeant Trudy Platt. Team, this is Katie Bend."

"Call me Kat. It's really nice to meet all of you." She said, shaking each of their hands. Trudy excused herself and went back downstairs.

"How do you two know each other?" Adam couldn't help but ask. This woman was definitely younger than Voight. She looked to be around the age of most of the detectives in the room.

"Hen… sorry, Hank and his wife Camille took me in when I was younger. "

"So you knew Erin?" Jay spoke up. Hank didn't talk about her much anymore ,and he missed his ex girlfriend and partner.

"I did." Her face lit up at her friends name. "We were best friends. Hank and Camille helped us out, got us off the streets. If it hadn't been for them… I'm not sure either of us would still be around." She gave Hank a smile.

"Let's go to my office . You can fill me in on what's been going on with you." He steered her towards his office and shut the door.

The rest of the team watched as they walked away. Once the door was shut it was gossip central.

"So we think that's a real story?" -Ruzak

"Erin never mentioned her." -Jay

"She seems really nice." -Kim

"Sad, but nice. " -Hailey

"Wonder why she's here after all these years?" – Kevin

The only one not joining in on the conversation was Antonio. He could read in her eyes she was there for a purpose, not just to catch up with her father figure after being away for so long. Those eyes. They were a blue grey color, and caught his attention immediately. She was pale, and had sun kissed blonde hair, which fell past her shoulders. When she shook his hand he felt a spark, but had kept his cool. He sat back at his desk , and tried to keep himself busy with paperwork. He kept stealing glances into the office, watching her pace Voights floor.

Inside the office Voight asked her to sit down but she refused. Instead she paced. She had a story to tell, and he didn't want to push her, so he sat back and waited. "Kat." Was all he had to say.

She looked at him with tears in her eyes . "Someone is trying to kill me."