A/N: I know the question of "Have Four and Tris had sex?" is kind of up in the air after allegiant but for the purposes of my fanfiction, they haven't.

Cara

I can't believe I saw what I just saw.

Tris.

She's back.

Holy crap.

This is unreal.

She was so scared.

I've never seen her like that, hell, I hadn't seen her at all for six years.

I'm still shaking when I enter the apartment.

Four is already there, immersed in an article.

He looks up as the door opens.

He sees me, my jeans wet from the orange liquid and my t-shirt ripped from where Tris had clawed at it when I tried to give Christina the towel.

He's up in an instant, his hands on my shoulders.

How did I think that I could keep this from him?

What am I supposed to say?

Lie.

I hear Christina's voice in my head but the lie won't form behind my lips.

"What the hell happened to you? Are you alright?" He asks me, concern etched all over his face.

I look at the carpet trying hard to think of a lie.

What?

What could I possibly say right now apart from the truth?

He lifts my chin so that I have to meet his eyes.

"Cara, tell me what happened."

He's so genuine and concerned that it makes my heart ache.

I am a terrible person and I am absolutely losing it.

My face crumples instantly and I am a blubbering mess.

I hate lying to him and I can't do it anymore.

Damn Christina to hell.

Damn her.

"I'm so sorry, Four." I sob.

"I'm so sorry. I should've just told you-"

"Told me what?"

"…I was just so scared…I'm so sorry."

"Cara, what is going on? You're scaring the living shit out of me, you've got to start telling me something or I'm going to lose it."

He's probably terrified.

I never have this type of reaction to anything.

I'm not a crier.

Not really.

I pause, looking up at him.

How am I supposed to say this?

How am I supposed to shatter his sense of self that took him so long to re-build after Tris died?

No matter how I say it, I am ruining that and our relationship by default.

I close my eyes, and take a deep breath.

"We…" My voice comes out in a whisper.

I clear my throat a little.

"…We brought her back."

He stares at me, confusion in his eyes.

He doesn't understand.

"Who is we? Who is her? You're not making any sense." He shakes his head.

I bite my lip staring up at him.

"Christina, Matthew, Caleb, Zeke, Shauna and I. We."

He looks taken aback for a moment.

It is a very specific group of people, one that he was sure I didn't see much of anymore.

I see the moment he registers what's going on because his entire body sways.

He drops his hands from my shoulders and shakes his head once.

His lips are shaking.

He is about to fall apart and it is my fault.

"…Tris…?"

He whispers it as a question but he already knows.

I know he does.

"Yes…" I whisper back.

He's staring at me and I want to die.

How could I do this to him?

Why didn't I say anything the moment Christina devised the plan?

There's a moment where he looks at me and I think everything might be okay but then he tilts his head.

"You're lying."

Of course he thinks I'm lying.

This is completely insane.

It's totally implausible but I had never been more truthful about anything in my entire life.

I let out a snort because why on God's green earth would I lie about something like this?

"Do you really think that I would lie to you about Tris Prior being back from the dead after everything you went through?"

He looks up at the ceiling eyes fixed on a crack that had been there since we moved in.

"…but how?"

"I…I don't really know the details. Matthew…something about…DNA and a serum…I don't know."

We are both silent for what feels like an hour but is closer to a minute.

When he finally speaks again he only asks one thing.

"Where?"

"The labs…the one's Matthew works in."

He turns, grabs his jacket from the back of the couch and pushes past me to move out of the doorway.

"Four! Wait!" I cry.

"Where are you going?"

He turns to look at me.

He's never looked at me the way he's looking at me now and it terrifies me.

"You don't get to ask me that right now."

I turn away because I don't want him to see how badly his words affect me.

"No…No! You don't get to cry right now either! You lied to me, Cara! For WEEKS!"

He's not screaming exactly but I wish he was.

That would feel better.

He shakes his head.

"I…don't even know who you are right now."

It's the last thing he says to me before he leaves me alone in the apartment, falling apart at the seams.

Tobias/Four

I'm not sure I believe Cara when she tells me.

It has to be a trick, or a joke and a really bad one at that.

That doesn't stop me from heading directly to the labs.

It would explain a lot; where Cara had been going every Friday, why Christina had acted so weird, why Cara had seemed off for awhile, Insecure.

It was because she knew Tris was coming back.

She doesn't know what that means for us and neither do I.

I enter the labs without even thinking of alarms or anything else.

I have one mindset.

I just have to get to Christina and Matthew because if they did this…if they really did this, that means Tris is back.

My Tris.

The Tris that didn't want to leave me.

I take the stairs two at a time.

I'd only been to the labs a couple of times but I remember where Matthew works.

When I reach the door to his workstation there is orange liquid spilling out from underneath the door.

It covers my shoes.

I notice there are strands of blonde hair mixing in it.

Tris's hair.

I try to open the door, but it is locked.

I bang on it repeatedly, if I have to kick it down, I will.

I start kicking it in, but it swings open before I have the chance to knock it off its hinges.

It is Matthew who greets me.

"Where is she?" I say in an unsteady voice.

Matthew looks surprised to see me.

"Um…" He stutters like he's afraid of me.

I don't have time for this.

I push him aside and move into the room.

That's when I see her.

She is crying softly on the floor and Christina is holding her.

If Caleb, Shauna and Zeke were here at some point they were long gone now.

Tris is wrapped in a green towel and she's drenched but she is beautiful.

The most beautiful thing I've seen in a long while.

Christina looks up at me and her eyes glisten with tears.

"You weren't supposed to find out like this. She's not ready."

I just stand there.

I feel like my limbs are useless.

She's right there.

The girl that I have prayed for.

The girl that I have dreamed about for six years.

I don't know what to do.

I want to go over to her but then at the same time I want to stay right here, far removed from it.

I finally find the strength and courage to move forward.

I kneel next to Christina.

"Can I hold her?" I whisper, though it's barely even a whisper.

Christina slowly lets go and I take Tris into my arms.

She turns into me, still sobbing, and I hold her close to me.

"Tris…" I whisper.

I can't help but smile.

I have her.

She's right here.

She's here and this isn't a dream or a nightmare where she's going to disappear at a moment's notice.

No.

This is real.

She is corporeal.

I can touch her, smell her, feel her.

I lean down burying my nose in her wet hair.

Her sobs start to mellow out, and then her breathing does too.

She's asleep.

She's asleep in my arms.

Oh, how long has it been since Tris Prior fell asleep in my arms?

Christina shakes her head.

"We've been trying to get her to fall asleep for an hour." She says in disbelief.

I don't respond to that.

I don't care.

"Get her some clothes." I say instead.

"Is there a shower in this place?"

Matthew nods.

"Yeah, uh…just up the stairs."

I pick her up.

She's almost weightless and I leave the room without a word to Christina.

…

The shower isn't really a shower.

It's just a nozzle connected to a wall.

I really want a bathtub but there isn't one at my disposable.

I prop her sleeping form against the wall and then I withdraw the towel.

I've never seen her like this and I try not to look unless I have to.

This is just business.

I have to get her clean.

I run the nozzle over her and orange liquid seeps out of her skin and down the drain.

I wash her hair and notice that strands are falling out.

I don't know how much hair is supposed to come out in the shower for girls but this seems unnatural.

Her hair feels brittle like it's barely there.

I don't remember this from before.

I tie her hair back in a ponytail the way I've watched Cara do it for herself in the morning a million times.

Cara.

I ignore the pang that thinking of her brings.

There is a set of clothes in the corner of the room.

Christina or Matthew must've brought them up when I was pre-occupied.

I rifle through them.

There is a blue dress there, like the one Cara had been wearing the other day, and a pair of socks.

I slip the dress on her and then the socks before carrying her out of the shower room.

I walk back into the lab and Christina and Matthew are talking in low whispers.

They've cleaned up most of the mess that was there when I'd shown up.

They look up when I enter.

Christina lets out a sigh.

"She looks almost…the same." She smiles just a little.

I don't respond to her.

I can't.

I'm afraid I'll yell and I don't want to wake up Tris.

"I'm taking her home." I finally say.

Christina stares at me like I've gone mental.

"Excuse me?"

"Did I stutter?"

The anger I feel towards Christina is seeping out of me.

" No! No, you can't just take her! You can't just walk in here and start commanding the operation. I did this! She's here because of me. I can handle it. I know what I'm doing. She needs to be with Matthew and I. Matthew needs to make sure she's okay, run tests. You weren't even supposed to be here!"

She is like a very spoiled child being told she isn't getting her way.

It's disgusting.

She has no comprehension of what she's done.

I've never wanted to smack someone so much in my life but Tris is in my arms and I won't let her go ever again.

I shrug.

"I wasn't supposed to be here but I am now. I'm taking her home. Matthew won't be running anymore tests, or experiments. She isn't a game, or a test subject, she's a person." I say as calmly as I can manage.

"She wasn't even alive two hours ago, Tobias" she sneers.

"You can't do this! There's a reason we didn't tell you! You can't just take her and keep her all to yourself! She isn't yours!"

"I can, and I'm going to. I don't think you understand. This was wrong, Christina." I say.

"We were just trying to protect you and the whole city for that matter."

I laugh.

Protect me?

Is that a joke?

"I don't think you were trying to protect me Christina. I think you knew if you told me about this I would tell you not to. I think you knew that what you were doing was selfish and that you should've left Tris alone."

"No…I just…I wanted to make sure it would work first! Why put you through that pain if it was just going to-"

"Christina…you didn't care about my pain. If you had, you would've told me! You would've-"

I close my eyes.

I'm not going to do this with her.

I'm not.

"You're selfish." I finish.

She doesn't say anything and I am glad.

"If it's necessary. I will call you." I say, and then I leave the lab with Tris in my arms.