AUTHOR'S NOTE: I hadn't intended to write this now, since I have another WIP underway. But a surprise visit from my brother prodded me to get this reunion fic started. Reuniting Len & Lisa is only the beginning.

The ringing of the visitor bell pulled Cisco away from the project spread across his workbench. His eyes widened when he checked the security monitor, and he thumbed the intercom. "Barry, you'd better suit up. We've got a visitor!"

"I'll meet you at the Cortex," Barry replied.

Cisco nodded, counted to five, and buzzed the security door open. Then he jogged to the Cortex, where Barry was already suited up and waiting.

"Cisco, who…"

Barry's question was interrupted by the arrival of Lisa Snart. She'd looked upset on the monitor, but now there were tears streaming down her face. With a sob, she threw herself into Cisco's arms. He shot Barry a bewildered look as he awkwardly patted her back. "Uh, Lisa, what…?"

She pulled away a little bit to dig into her jacket pocket. She pulled out a folded paper that was slightly rumpled, and held it out with a trembling hand. She opened her mouth to speak, but another sob came out instead.

Barry took the letter, and she fell back into Cisco. He watched Barry open the paper, and saw his expression change from one of curiosity to one of grief as he read it.

"What's going on here?" Caitlin had arrived in the Cortex, and looked at them with a puzzled expression. "Why is Lisa here? And why is she crying?"

"It's Snart," Barry answered roughly. "He…" He stopped and took in a long, pained breath. "This is a letter from Mick Rory. He says Snart's dead," he finally said, his voice breaking on the last word.

Cisco's mouth dropped open, and he exchanged a shocked look with Caitlin. She took the paper from Barry and began to read it out loud.

"Lisa,

"I'm sorry to just leave you a letter like this, but I couldn't find you to tell you in person before we had to leave. We're going to take out this immortal asshole warlord, and I don't know if I'm coming back.

"Lenny won't come back. He's gone, Lisa. I'm sorry. He died saving our lives. He sacrificed himself to stop these other assholes called the Time Masters from controlling everything.

"You know how he hated being controlled by anyone.

"The worst part of it is, he died in my place. I was ready to blow up the Oculus myself. I didn't have anything to go back to. Lenny had you and Sara.

"Oh, hell. You wouldn't know about Sara. He met her on the mission. He… I think maybe he loved her. And maybe she loved him too.

"I know that doesn't sound like the brother you knew. Lenny changed on this mission. We went into it for the score, planning to steal through time, but somehow he started caring about everybody else on the Waverider.

"And then he decided to be a goddamned hero.

"There's a lot more, but I don't have time to write it down. I will do everything I can to survive this mission and then come find you to tell you everything. But in case I don't make it, know that he loved you more than just about anything in the world.

"Mick."

The Cortex was silent except for the sound of Lisa's sobs. Caitlin brushed away a tear, and Cisco was surprised to feel one trailing down his own cheek.

"After all the trouble he caused us, I can't believe I'm saying this, but… I'm so sorry, Lisa," Caitlin said, laying a hand on the other woman's shoulder. Lisa pulled away from Cisco a little to meet Caitlin's eyes as she continued, "Despite everything else, I know he tried to be a good brother to you."

Lisa nodded and covered Caitlin's hand with her own to give it a brief squeeze. Then her eyes widened as Barry pushed back his cowl to wipe his eyes. "I know you," she said. "You hung out with Cisco at Jitters."

"Lisa, this is Barry Allen," Cisco said, "AKA The Flash."

She furrowed her brow. "Barry Allen… your name was on the visitor's log to see Lenny at Iron Heights. I asked about it, and he wouldn't tell me anything, but he seemed… off. Different."

"Yeah, maybe," Barry said. "Lisa, I told your brother there was good in him. I thought he had potential to be a hero. But now… If I hadn't said anything…" He huffed out a sigh. "I feel like this is my fault."

"You know I've always made my own decisions, Barry," a voice drawled from the entrance to the Cortex.

Caitlin and Barry whirled, and Cisco felt his jaw drop again.

Leonard Snart stood in the entrance, flanked by Mick Rory and a blond woman. Professor Stein and Jax stood behind them, and kept Snart from falling backward when Lisa flew at him like a linebacker, crying, "LENNY!"

Snart's eyes closed as he wrapped his arms around his sister, running one hand in a circle on her back as she began to sob again. "I'm here, Lisa, I'm here," he said in a soft voice with no trace of the usual drawl.

Cisco exchanged stunned glances with Barry and Caitlin, and all three began asking questions at once.

"How…?"

"We thought…"

"Mick's letter said…"

The professor interrupted them, holding his hands up in a quelling motion. "It's a long story."

"Professor, you explain it to them, please?" Snart said in that soft voice, opening his eyes. Cisco was surprised to see tears in them. "Is there anyplace I can talk with Lisa in private?"

Cisco nodded. "Yeah, sure." Snart's companions made way for Cisco to move past them, to lead the Snarts to his workshop.

He glanced back to see the siblings following. Lisa was still leaning against her brother, one arm wound around his waist. Snart had laid his arm across her shoulders, and was pressing a kiss into her hair.

Cisco blinked in surprise. He might have to rethink that "Cold" label.

Len's mouth twitched in a slight smile when Cisco turned away to continue leading them down the corridor. The kid's expression had been priceless.

He glanced down at his baby sister, and the smile grew a little wider. As a child, Lisa always got the hiccups after a crying jag. That hadn't changed; she was hiccupping now.

Cisco led them into a cluttered workroom. Len settled Lisa onto the stool at the semicircular worktable and asked, "Can you get her some water, please?"

"Sure, sure!" Cisco walked over to another workbench and opened the mini-fridge under it, pulling out a bottle of water and bringing it back to Lisa. "Here."

"Thanks, Cisco," Lisa said, with another hiccup. She opened the bottle, took a deep breath and then sipped some of the water.

"You're welcome," Cisco said. He stood there awkwardly for a beat, then another. Len raised an eyebrow at him, and the kid shook himself. "Uh, I'll just… leave you two alone…"

He started out of the room, then turned back. "Uh… don't touch anything…" Len tilted his head, and Cisco stammered, "Just meet us in the Cortex when you're done."

Len chuckled after Cisco left the room. "Now I feel like rearranging everything just to mess with him."

"Don't you dare!" Lisa warned before taking another deep breath and another drink of water. After a moment, she sighed in relief, the hiccups apparently gone. "He's been sweet to me."

Len nodded as he leaned back against the worktable. "I know. He cares about you, and…" He paused for a moment, then decided to just go ahead and say it, "and I'm glad for you."

Lisa tilted her head. "Never expected to hear you say anything like that," she said. "I also never expected you to hug me back in front of other people, let alone kiss me." Her voice softened, and she asked, "Lenny, what happened? Why did Mick leave me a letter saying you were dead?"

Len drew in a deep breath. "It's a long story, Lise. When Mick left you that letter, he did think I was dead, blown up with the Oculus just like he said. Then they found out I wasn't dead, just trapped, and the team rescued me."

"Mick said something about stealing… through time?"

He nodded. "Yeah. We've been traveling on a spaceship that can travel through time."

His eyes widened in surprise when she hit him in the chest. "If you were time traveling, you couldn't make it back here before I got that letter?" she asked angrily.

He grabbed her hands and held onto them firmly. "I wish I could have, but it would have ruined the timeline," he told her. He sighed. "Our ship's captain likes to say that time wants to happen. Time wanted you to get that letter. Just like it wanted Dad to go to Iron Heights before you were born."

Lisa's posture relaxed as she stared at him. "What do you mean?"

He loosened his grip on her hands but still held onto them, running his thumbs over them. "One of our stops was in 1975. I tried to keep Dad from getting caught stealing the Maximilian Emerald."

"But he wasn't caught stealing it," Lisa said in a puzzled tone. "He was caught fencing it."

Len nodded. "Yeah, this time around. But in the original timeline that I remember, he was caught stealing it." He sighed. "Either way, time wanted him to become a monster."

Lisa considered that in silence. Then she raised their joined hands. "That still doesn't explain this. Lenny, touchy-feely isn't you. It hasn't been you for years. What else happened?"

"Jurgen's Ridge happened," Len answered.

"What's Jurgen's Ridge?"

"The place I got trapped after the Oculus. It's a place in the time stream where you can see… everything. The past, the present and the future." He released her hands and held up an admonishing finger. "And before you ask, I can't tell you about the future. But I can tell you about the past."

He tilted his head back and looked at the ceiling, remembering those visions. "I saw us, Lise. Our family, and how we grew up. I saw what you and I used to be like with each other, and then I saw what we turned into."

He looked back into her blue eyes. "I didn't like it, Lisa. We became… cold, and hard, even with each other, and when I realized that… I hated it. I want us to be… better. And I don't mean robberies as family time."

Lisa's eyes widened, and he smiled a little. "I'm not saying I expect us to be some sappy TV family. That ain't us. But for now…" He put his hands on her shoulders. "I'm not going to call you a train wreck ever again."

He leaned down to kiss her forehead. "I love you, sis."

Lisa slid off the chair to hug him so hard he almost couldn't breathe. "I love you, Lenny," she said in a teary voice. She pulled back and looked up at him with a watery smile. "I can't promise I won't ever call you a jerk again, though."

He smirked. "Well, I can't promise I won't deserve it every once in a while, so that's fair enough."

Lisa giggled and went up on her toes to kiss his cheek. He closed his eyes and sighed, remembering the child she'd been. He gave her one more squeeze, then released her. "Come on, there's someone I want you to meet."

Lisa gave him a teasing smile. "You mean the blonde that came in with you? Is she the Sara that Mick wrote about? I'm looking forward to it."

He chuckled and draped an arm around her shoulders as they walked out of the workroom. "You'll like her. She thinks I'm a jerk, too."

Another giggle. "But Mick says she loves you, and that you love her?"

He paused for just a moment. "I… I care about her…"

Lisa's eyebrows went up at that. Len was saved from a sisterly interrogation by the younger half of Firestorm, who came jogging down the hall. "Snart, come on! You've gotta see this!"

They followed Jax to an opening Len didn't remember seeing when they'd passed through before. It led into a stark white room, where Barry and Cisco stood with Len's teammates. Len stepped into the room, his eyes widening at the familiar holographic head projected before the group. "Greetings, Mr. Snart," the head said. "I am Gideon."

"Not our Gideon," Len answered, noting the difference between this hologram's voice and the one he knew so well from the Waverider.

"This one says she's from further in the future than our Gideon," Mick said.

"So how did she get here?" Len asked.

"Long story," Barry replied. "The short version is that the Reverse Flash built this Time Vault and put Gideon here. The professor mentioned that you have a Gideon, so I thought your team should see ours."

"It is fortunate that Captain Hunter did not come with you for this visit," Time Vault Gideon said. "He cannot be told of my existence yet."

"Yet?" Jax asked with a raised eyebrow.

"A time will come when you can tell Captain Hunter and the Waverider's Gideon about me. I will inform Mr. Allen and Mr. Ramon when that time comes," Time Vault Gideon said. "For now, I already know that all of you can, and will, keep this secret. We will talk again when the time is right."

Time Vault Gideon disappeared, leaving the group looking at each other in bewilderment. Finally Stein said, "Well, our Gideon has always known what she's doing. I think we can trust this Gideon's judgment as well."

They walked out of the Time Vault, heading back to the Cortex. Sara fell into step next to Len and Lisa, holding out her hand. "Lisa, I'm Sara. I've heard a lot about you."

Lisa took it with a smile. "Pleased to meet you. Can't wait to hear all about my big brother on this time travel mission of yours."

Barry sidled up to Len's other side. "So, how are you liking the hero gig?"

Len scowled at him, but only halfheartedly. "I'm no hero."

"Yes, you are!" his teammates chorused, some of them with a laugh.

Lisa grabbed his hand and gave it a squeeze. "You always were to me."