Alright, so this is a semi-spinoff of my series "The Intern." This idea came to me one day but it just seemed a little too farfetched for me, and those of you who are frequent readers of my material know I like keeping things as realistic as possible. But I wrote it out just for fun and I kind of like how it turned out. I knew I wanted it to be a crossover with another CSI series so I picked New York. Normally I don't watch CSI New York, but just before I wrote this I watched a couple of episode, mostly because Horatio was in those episodes, and I had read a fanfict that was a crossover with Horatio and Mac. So I decided to actually write a Miami-New York crossover.

This story's kind of short, only seven chapters in total, but it moves quickly. It does coincide a little with my Jessica/Ryan series. Jessica Caine is in this one, but Ryan isn't until the end. Jessica and Horatio's past together is relevant to this story. I tried to include the information needed for anyone who might not have read my Jessica/Ryan series, but I didn't want to fill it up with too much useless chatter.

Ok, done rambling. Enjoy!

Gemini:
Dr. Caine and Ms. Johnson
Chapter One

Horatio and Jessica Caine walked through the Chicago Police Station. They took in all the new sights and sounds of the busy office.

"This place has changed so much since the last time we were here," Jessica commented as they passed by Horatio's old desk.

"Well that was fifteen years ago, Jess," Horatio chuckled. "I would imagine a lot has changed."

"One thing hasn't."

"What's that?"

"Crawford's still Lieutenant. I thought he was retiring five years ago."

"Well apparently he decided otherwise."

They entered an empty conference room. They leaned against the table, just chatting about old memories of a life they had long since left behind. A tall man with gray hair entered the room and smiled at them.

"Is that little Jessica?" Lieutenant Crawford said as he wrapped his arms around Jessica's shoulders. "My goodness, the last time I saw you I don't think you were even five feet tall."

Jessica giggled as he kissed her cheek.

"And I'm pretty sure the last time I saw you your hair was still on your head," she said.

"Hey, I've got plenty," Crawford said, running his hand over his thinning hair. "It's just not as boastful as it used to be."

"Crawford," Horatio said, shaking the man's hand.

"Caine, I hear you're Lieutenant now, down in Miami."

"Yes, for ten years now."

"You know, if you had stayed with me a little longer you would have made Lieutenant up here."

"Yes, but I had my reasons for leaving."

"It was Izzy, wasn't it?" Crawford inquired. "You couldn't live with her ghost anymore."

"Yes, Izzy was one reason," Horatio quietly said.

"Well what are we standing around here for?" Crawford said in a brighter tone. "Let's get out to the crime scene. The guys from New York haven't arrived yet, but I don't think they'll mind if we get a head start."

"New York?" Jessica said, "Sounds fun."

"Should be," Crawford said. "The guy we're after seems to have made a brief stop in New York City before coming to Chicago."

"What was his mistake?" Horatio asked as they climbed into a patrol car.

"Killing an off duty officer," Crawford somberly answered. He looked over his shoulder at Jessica in the backseat. "Well this seems familiar," he chuckled as he started the car. "Should we stop by the juvenile detention center, too? I bet they still have your old room reversed especially for you, Jessica."

"Hey, I didn't spend that much time there," Jessica retorted.

"Only twelve months out of the year," Crawford chuckled as he drove down the street.

Mac Taylor stared out the window of the police SUV as the tall buildings of Chicago passed him by.

"I haven't been to Chicago in years," Stella said from the front seat. "I just wish it was for a better reason."

The SUV came to a halt. Mac and Stella climbed out together and followed the Chicago officer over to where a tall man with gray hair was talking to a redhead. Mac smiled when he recognized the man immediately.

"Detective Taylor and Detective Bonasera," the officer accompanying Mac said to him, "Lieutenant Crawford, Chicago PD and Lieutenant Caine, Miami Dade PD."

Mac shook Crawford's hand and smiled when he grasped Horatio's hand.

"Horatio Caine," Mac said, "I didn't know you were going to be here."

"Lieutenant and Dr. Caine will also be helping with the investigation," Crawford quickly explained. "This guy started in Miami and worked his way here."

"Dr. Caine?" Mac said quizzically. "You got married, Horatio?"

"Well, yes, actually I did," Horatio quietly said, "But my wife was murdered."

"Then who's…" Mac's gaze drifted across the grass of the Chicago Park to where a young blonde woman stood talking to the couple who had found the body.

"My daughter," Horatio said, not needing to turn to know where Mac was looking.

"I didn't know you had a daughter," Stella commented.

"I never felt it was necessary to mention," Horatio quietly responded.

"Caine's a bit protective of his girls," Crawford commented.

"Girls?" Stella repeated. "There's another one?"

"Well, there was another one," Horatio nearly whispered. "Jessica had a twin, but Elizabeth died just shy of their fifteenth birthday."

"Oh no," Stella quietly said, "What happened?"

"I'd rather not discuss it," Horatio said. He looked away, his eyes locking on his daughter for a moment before he began walking in the opposite direction.

"He's kind of sensitive about the subject of Izzy," Crawford quietly said. "I don't think he would willingly talk about her even if you water boarded him."

"That's a rather bold statement," Stella said.

Mac stood there alone as Stella and Crawford walked away. He looked at the young blonde woman as she vigorously jotted notes. His gaze wandered over to where the redheaded Lieutenant knelt beside the body of a woman not much younger then his daughter. Though he hardly knew either, something rattled Mac deep within. Something at the very core of his body.

"Wow, now that's a Tiffany ring if I ever saw one," Stella said as Jessica pulled off her gloves. Jessica's cheeks flushed slightly as she stuffed her gloves into an evidence envelope.

"Um, thanks," she quietly said. "It was a gift."

"From your boyfriend," Stella said, no inflection in her voice indicating a question.

"Yes," Jessica shyly answered.

"Was it for the big question?" Stella continued to prod.

"No, just a promise ring."

"But you love him."

Jessica smiled again and looked down at her hand. The light danced off the pink stone beautifully as it sparkled brighter then ever.

"Yes, I do," she whispered.

"What's his name?" Stella inquired.

"Ryan Wolfe," Jessica quietly answered.

"You two meet at the crime lab?"

"Yes, and if anyone asks we're either engaged or not together."

"What about your father?"

"Oh he found out the hard way," Jessica quietly said.

"How?" Stella inquired.

"Well, let's just say one of Ryan's neighbors was murdered and Horatio went to use his bathroom and may have found one of my t-shirts in his laundry hamper."

"Oh dear, not a good way to find out one of your staff is dating your only daughter."

"Or that you're dating the boss's daughter."

"Ryan didn't know Horatio's your father?"

"No, I didn't use my legal last name when I began at the crime lab."

"Didn't want everyone knowing you're the big boss's little girl?"

"I wanted to keep it on the down low for as long as possible."

Stella couldn't help but laugh. She shook her head and smiled at Jessica.

"You remind me exactly of your father."

"You sure this is where the guy's staying?" Mac inquired as the unmarked Chicago Police car pulled up outside an abandoned house that was under construction.

"This is where the anonymous tip led us," Crawford replied.

"Alright, let's kick some bad guy ass," Jessica said as she pulled back the slide on her glock, making sure the chamber was loaded.

The police squad crept through the dark. Mac and Jessica went around the west side of the house with an officer, while Horatio and Stella went around the east side with Crawford. When everyone was in place an officer pounded on the front door, announcing their presence. They could hear something crashing and banging inside the house. The Chicago officer kicked in the front door, just as another kicked in the west side door.

Jessica and Mac rushed into the house with the other Chicago officers, scanning each room. Mac followed Jessica, knowing she could hear something that he couldn't. They rushed into a room and quickly began scanning.

"I don't see anything," Mac said.

"But I heard something rustle in here," Jessica said a little winded.

Shots rang out from somewhere and Mac dropped to his knees, clutching at his abdomen.

"Mac!" Jessica exclaimed as she spun around.

Mac gasped for air and looked at where Jessica stood. He raised his gun and fired, but not before a two by four crashed against the side of Jessica's head and she collapsed to the ground.

The man tried to run from the room. Mac struggled to his feet, still trying to regain the oxygen in his lungs. He fired three more times, each time hitting the man square in the back. The man fell to the ground and lay motionless as a pool of blood formed beneath him.

Mac limped back to where Jessica lay on the ground. She had a gash on the right side of her head and blood running from her nose and ear. He placed his hand on her neck and sighed in relief when he found a pulse.

Horatio clambered into the room and collapsed beside his daughter.

"Is she…" he began, unable to form words.

"Alive, but unconscious," Mac said, still panting for air. "He hit her with that two by four."

Horatio sighed and gently stroked Jessica's hair. He looked back at Mac, noting the sweat coating the other man's face.

"Are you alright?" he inquired.

"I'll be fine," Mac said, running his hand over his bullet proof vest. "The Kevlar took the bullets."

"But you still took the hit," Stella said as she entered the room.

"I'm fine," Mac said again. "Just give me a few hours and I'll be as good as new."

Stella laughed and shook her head. "Tough as nails," she said as she stepped aside for the paramedics.

Horatio smiled as his daughter groaned. Her eyelids fluttered but she closed her eyes again. She turned her head towards Horatio as she moaned in pain.

"Daddy?" she said in a small, whispery voice.

"I'm right here, Bug," Horatio reassuringly said, as he continued to stroke her hair.

"Daddy, what happened?"

"You took a two by four to the head," Horatio softly explained.

"What about Mac?"

"He's fine, the bullets didn't penetrate his vest."

"Where is he?"

"Working on being discharged; his injuries were minor. He just got a once over to make sure there wasn't any internal damage."

"Good, I'm glad he's ok," Jessica whispered. She sighed and her hand instinctively found his. She held it tightly as Horatio's other hand continued to gently run over her head.

"Hey, you're awake," Stella said as she and Mac entered the room. "I was beginning to worry about you."

Jessica smiled weakly and turned her head towards Stella's voice, her eyes still closed.

"I'll be fine," she said in her soft voice.

"Unfortunately not well enough to fly home right away, from what I hear," Stella said.

Jessica groaned and squeezed Horatio's hand hard.

"You mean we have to stay here longer?"

"Not any longer then what we were going to," Horatio said. "I still need to help close the investigation."

"Then find a nurse and get me out of here," Jessica said, almost demanded.

"Sorry, Bug, no more work while you're here. You have a rather bad concussion. You need to rest."

"I hate the hospital."

"Well good thing you only need to stay overnight," Horatio said with a light chuckle. "I'll be back to pick you up in the morning."

"Alright," Jessica sighed. She brought his hand to her lips and kissed his knuckles softly. "I love you, Horatio," she quietly said.

"And I love you, Jessie Bug," Horatio responded. "I have to go now. I'll be back in the morning."

"Ok," Jessica whispered.

Horatio followed Mac and Stella out of the room. Stella and Horatio quickly matched their pace as they began discussing what Crawford had reported to Stella, while Horatio had waited with Jessica. They were so engrossed in their discussion they hadn't even noticed Mac was no longer following.

Mac stood there outside Jessica's room. He looked in the large windows in the wall of the observation room to where Jessica lay in the bed. Her eyelids slowly fluttered open and she turned and looked out the window at Mac. She smiled at him, but he wasn't able to return the gesture. Something about the gleam in Jessica's green eyes gave Mac a very unsettled feeling.