"Mysterious Smoak"

Disclaimer: I don't own the characters; those belong to their original creators. The way it's all stringed together is of my making. No profit is being made out of this (*sigh* unfortunately).

Manipulations of the cover art/image are mine though.

While the chapters in this story can be seen as separate entries, they all have the same backstory in common. Think of it as each chapter being a "what if" moment for the characters yet with all chapters sharing the same backstory.

Backstory:
- Felicity meets the Winchesters in 2012 (reality; 2011-2012 / verse; 2012-2013) = S9 (verse; 2015-2016)
- Timeline of "Arrow" is pushed forward by 2 years so the ages are the same (therefore Oliver was shipwrecked in 2009 and saved in 2014) = S2 (2015-2016)

Ages: (see first chapter)

REASON why this is listed under "Arrow" only: because of Felicity.

Chapter Summary: [Tag on to 2x19] The aftermath of Castiel's possession of Felicity.
Inspiration: A lot of people asked for a part 2 to the original 2x19 tag that I wrote.

Spoiler(s): everything up to ep. 9x17 ("Mother's Little Helper") for Supernatural and everything up to ep. 2x19 ("The Man Under the Hood") for Arrow
Time Frame: This is an altered continuation of the 'Slade in the Foundry' scene.

A/N: At the end to avoid additional spoilers. Not beta-ed.

NOTE: This chapter is no way connected to the previous chapters (except for the one titled 'Plan C').

*SPN*Arrow*SPN*Arrow*SPN*

"Plan C (Part 2)"

It didn't take long for Felicity to come to. She groaned and wriggled a bit while in Oliver's arms.

"What happened?" She mumbled while her eyes were still closed. She felt too cozy where she was that she didn't want to ruin the feeling by opening her eyes.

"Apparently you have an angel as your friend." Oliver replied and it shocked her just how close his voice was to her…or that she felt a slight rumbling by her head when he spoke.

"Cas was here?" She opened her eyes and was shocked to find that she was leaning against Oliver. She tried the best she could to hide her shock and slight awkwardness that came from their close proximity (something that should not be happening no matter how many times she's fantasized about it).

Instead of focusing on Diggle and Sara (who were watching her closely), she looked up at Oliver for an answer. He only gave her a nod.

"It worked?" She asked again as she tried to remember everything that happened after she had called Castiel. Her mind came up with nothing.

Oliver raised an eyebrow up at his IT girl, "You sound surprised."

Felicity sighed. "It's… complicated."

She didn't want to say that she didn't remember any of it. She knew there was a chance that she'd never remember being possessed but Sam was able to recall the times when Gadreel had taken control over him so she figured that she could do the same. She just didn't know how Sam had done it. So for now, she was in the dark about what Castiel did while in her body…which sounded oddly weird now that she thought of it that way.

As her eyes lowered from Oliver's and scanned the room, she quickly took notice of the dead body that was left in the middle of the Foundry. I guess that's one mystery solved, she thought before she registered the rest of the damage around her.

"I'm just glad that it worked." She continued as her eyes stayed on Slade's dead form.

"Me too but you have a lot of explaining to do." Oliver nodded as his hand trailed down to her elbow, tugging on it to gain her attention again.

Felicity sighed as she turned her head to face him, "I know. I should have told you." And she knew that she should have but when was the right time to drop a bombshell like 'angels are real' onto them?

"We'll get to that after you tell me why Castiel said that your call to him was a risk on your part. What did that mean?" He calmly asked even though he was anything but calm. He'd been running the angel's words on a loop in his head as he waited for Felicity to wake up and yet all the ideas he came up with, they didn't lighten his mood one bit. And when he felt her stiffen in his arms after his question, it only caused dread to fill his mind. When she started to avoid his gaze, it only caused the dread to increase inside him.

When she only bit her lower lip in a way that he's come to know as a nervous quirk of hers, her softly called her name again in hopes of it putting her at ease for a bit.

It seemed to work when her shoulders sagged.

"It's a risk because not every human is powerful enough to contain an angel's grace within them." She softly confessed as she continued to stare at his shoulder, the one that Slade had cut during their fight earlier. It wasn't bleeding now thanks to Castiel yet the shirt was still ripped. That rip was keeping her eyes from drifting to Oliver's. She couldn't look him in the eyes.

"Meaning what exactly?"

Felicity sighed, "Well, if my body wasn't a viable vessel for an angel, let's just say that I would have exploded like a bowl of chunky soup. That's Chuck's description but I really hope that's just a graphic exaggeration otherwise I'm sworn off chunky soup for life." She rambled yet it came to a stop when Oliver took a step back, putting some space between him and Felicity. Because of this new change, she looked from his shoulder to his face and saw how his eyes had hardened as he looked at her.

"Are you telling me that you gave Castiel permission to possess you while not knowing whether or not you were a viable vessel for him?" While he may not understand the logistics behind angel possessions (he was still trying to process the fact that angels could possess humans), the idea that there was a chance that Felicity could have died immediately after taking in the angel did not sit well with the billionaire at all.

Her lips thinned into a grimace. "It's not like I tested the viability theory out on me before but I tracked my lineage to someone who was a viable vessel." She turned and marched towards the main computer terminal. She bypassed Sara and Diggle as they remained silent spectators of the whole conversation as they tried to piece their own pieces together of what happened. Since they were positioned by her terminal, they just swiveled around so that they could watch what Felicity was doing.

She tapped a few sequences into her network before she allowed herself to access a hidden network of files that she created for Sam and Dean. One of those files consisted of an archive she had created of all humans that were killed while being possessed by angels. Every crime scene report had images of the body that had burned out eyes and a shadow of wings beneath the body. While she could never identify the murdered angels, she would use facial recognition on the human vessels and then track down the bloodlines through the human family trees. It always took time yet she was determined to connect those theoretical ties. During her research, she discovered that one of her ancestors from a century ago came from the same family tree as an ancestor of Jimmy Novak, the human that Castiel was originally possessing.

"And since vessels are carried out through specific bloodlines, I gave it a shot." She finished before she turned to face Oliver, with her hands on her hips as she stood in a defiant manner. She didn't care that the attention of Sara and Diggle had shifted to her files…she did bring it up for them to see, Oliver too yet he hadn't moved to check the information out.

Oliver gave her an incredulous look, "You gave it a shot?"

Felicity huffed as she threw her hands up, "It worked didn't it?"

Oliver scoffed, "Yeah but you only had a theory that you'd be viable for Castiel! What if you were wrong?"

"I wasn't."

"Felicity," the billionaire scowled at her.

She sighed as she pinched the bridge of her nose. She could feel all eyes on her again,"I get it okay. Viable vessels isn't an exact science but once you've figured out which ones are viable you can work backwards which is what I've been doing since I learned that angels were truly real." She pointed towards her computer screen yet Oliver didn't even glance away from her. Seeing him not budge, she continued to state her case, "I mean, Cas even thought that the theory was sound when I first presented it to him a while back. And even if I didn't have my theory, I would still make the call and take my chances with Cas if it meant saving you guys from Slade." This time she pointed at the dead body in question, "And by the looks of it, it was the right call. I mean, you guys take risks every day; it was my turn to take a risk for the team."

Oliver's sour mood deflated at the reminder, "I would never ask you to take such a risk."

"Then it's a good thing that you didn't ask me to. I chose to. My life, my choice, remember?" She quirked an eyebrow while fighting off a smile. She knew he'd never ask her to take any risks but she would always take them if she believed that doing so would turn the outcome into the team's favor, into Oliver's favor.

Oliver sighed as he dragged his hand over his face. "I still can't wrap my head around it."

Felicity gave him a comforting smile, "That's okay. It took me some time to wrap my head around it too."

Realizing that the hostile tension between his teammates had diminished, Diggle shifted in his seat and spoke, "How long have you known?"

Diggle's voice brought his presence back to Oliver and Felicity's mind; they had a tendency of forming a bubble around them, especially when they disagreed with each other.

"About a year or two before your-" she turned and addressed Oliver, "-first return from the island. I kind of grew up with the idea because of my Uncle Frank's conspiracy theories about it but I learned the truth of it all two years ago when I was slammed into that…world." She turned to address Diggle again, "Learning something like that changes you." Since that was the first time she brought up her late Uncle Frank, she was grateful that they didn't ask her about him but she knew that they would store that little bit of information away for later. She wouldn't expect anything less from them.

"I can see how." Diggle nodded; although he wasn't awake during her possession, the snippets he heard about the ordeal gave him the impression that what had happened wasn't something a person could easily forget or brush off afterwards.

Felicity shook her head, "You've only seen a part of that world. There is so much more to it than angels."

Oliver took a few steps towards the computers until he stood beside Felicity while having an unobstructed view of the electronic screen. "Why didn't you tell us before?"

"I didn't want to burden you with it." She admitted with a shrug while she stared at the screen that Sara was flicking through. "With everything that was happening, I didn't want to place any more weight on your shoulders." She shifted and looked at the billionaire, "You had enough to worry about in your own life. I didn't need to bring up burdens from my past if it wasn't necessary."

Oliver didn't know what to say to that (he never wanted her to feel like she couldn't share anything with him) but luckily Diggle did. "Your past is not a burden Felicity, it helped create the person you are today."

Felicity turned a bit and gave the man who she loved as a brother a small grateful smile. "While that may be Digg, it's still a burden to know and for the years that I've known about it, it's consumed my life to the point that I couldn't really tell you anything without it seeping in on some level. Truly knowing about…that, it completely changes how you view the world around you. It's truly a miracle that I haven't gone insane already." She tried to explain without giving too much of the actual details away because she truly didn't want to burden them with the knowledge of the supernatural world. Oliver was still dealing with his time on the island and Diggle still had some issues from his time in the military. And Sara, well, she was stilling reeling from her time on the island and with the League of Assassins. Those deep-seeded human issues were enough for them and Felicity didn't want to add anything else to that.

"It can't be that bad." Sara added as an attempt to lighten the topic because in her mind, nothing was worse than her time on the island (even her time with the League made her time on the island seem like a cake walk).

Felicity sighed as she shook her head, "You either accept the truth and do something about it, or you bury it. Many people choose to bury it while others embrace it and take action against it. You either do something or you do nothing."

"And where do you fall?" Diggle asked.

Felicity allowed a faint smile to appear, "I'm in the middle. I've embraced the truth and try to help any way I can but I don't take action like Sam and Dean do. They're fully invested, whether they like it or not." She typed a few other commands into the computer before another program popped up.

The three fighters turned and saw that the program was sifting through newspaper articles for anything that matched the program's perimeters. What the fighters didn't know was that Felicity had created the program to allow for her to search for any signs of a supernatural hunt. Usually she would let it run ideal but if she needed to find a specific perpetrator (like possible demon activity), she would use the program to help narrow her search down. She would then transfer her findings to the Winchester brothers.

"Sam and Dean?" Oliver questioned after realizing that he didn't know what the program was meant for. It looked like one of the programs he had seen her use for Arrow-work but some of the parameters didn't make sense to him. So instead he focused on what she had said because it reminded him of what Castiel had said to him before he left.

"Tell Felicity to call Dean when she wakes up. She won't remember this, not at first."

Oliver's brow scrunched up at the mention of the new name, "Dean?"

Castiel nodded, "She knows who he is."

"Yeah," Felicity said, breaking Oliver out of his memory of Castiel, "they introduced me to Cas and they're the ones that revealed the truth to me after they saved my life. They are the best of the best at what they do. They are legends in that world, feared by all that stand in their way of doing what is right." She admitted with a proud smile before she took on a more somber attitude, "They kind of had to tell me when I was being targeted by something they were hunting."

Three heads immediately turned to stare at her, each with wide eyes. They couldn't understand what could have targeted her. They hoped it wasn't angels.

"You were a target?" Sara couldn't help but ask as the men were speechless at the mere idea of Felicity being targeted for anything before she got involved with the vigilante.

Felicity waved her hand dismissively, "Story for another time. Anyways, they're brothers that grew up in the life. They've been aware of it and have been training for it before they were teenagers." She always felt awed and saddened whenever she thought of the childhood that the Winchesters had experienced. They definitely made the best of their situation while others would have probably given up if placed in their positions.

Before she could reveal anything else about the brothers, Felicity noticed the confusion on Oliver's face.

"What is it?"

"Before leaving, Castiel told me to tell you to call Dean once you woke up." Oliver explained even though he didn't understand why Felicity needed to call this Dean fellow. Shouldn't she be calling Castiel to tell him that she's awake and okay?

"I better go do that. I don't want to worry Dean more than necessary. He's got enough on his plate. I'll just be a moment." She didn't even question the idea. She quickly moved to the back of the Foundry to grab her phone (which she figured she had dropped once Castiel had taken control over her since he hadn't returned it to her pockets). If Castiel wanted her to call Dean then he must have known about the possession (maybe Castiel had been tracking with the Winchesters again) or Castiel was too busy getting back to tracking down Metatron so he wanted her to check in with Dean afterwards. Either way, she would make the call.

When Felicity was out of earshot, Sara turned to Oliver, "Are you buying any of this?"

Diggle rolled his eyes at the doubtful statement as he turned his attention to the computer. Whether he was conscious or not during the angel's presence, he believed Felicity. He just hoped that Oliver believed her too as opposed to being doubtful like Sara seemed to be.

"You didn't see what I did Sara." Oliver pointed out as his attention remained on Felicity (who was now pacing on the other side of the Foundry as she talked on the phone), "And stranger things have happened."

Sara shook her head, "But angels, Ollie? That's a little far-fetched, even for us."

"You didn't see what I did." He repeated as the memory looped through his mind once more.

No matter what Sara thought, Oliver knew that what Felicity told them was the truth. He just had to get over the fact that she had kept it from him. Maybe he'll work on that after he's processed the fact that there was a lot more to his IT girl than he originally thought.

*SPN*Arrow*SPN*Arrow*SPN*

In this verse:
- Felicity is distantly related to Jimmy Novak (they each have an ancestor that was part of the same family tree a century ago)
- Frank Devereaux is the maternal uncle to Felicity (Frank is introduced in 7x06 of SPN)

A/N #1: There you go! The requested Part 2! I hope this quelled your curiosity and some of Felicity is revealed in this but it's only valid for this idea set! So what did you think? Did it work for you guys? Did you like it/hate it? Believable/Ridiculous? Please leave a review! He's another incentive to review, my birthday is on Tuesday (May 6th)...just saying. ;D

A/N #2: Once again, your response to this collection has astounded me. I'm truly amazed and very appreciative of you guys. Thank you so much for all the hits and reviews! The positive response is just lightening up my spirits very much during this end-semester-crunch-time!

A/N #3: Sorry for this part 2 delay but after 2x20 had aired, a different scenario had popped into my head and I wrote a majority of that before I got back to this.

Originally Published: May 2, 2014 (Happy Birthday Sam Winchester!)