A/N: Thanks to those who have read an reviewed. Note: this is written using Divergent knowledge only.

CALEB

I instantly recognise the fiery burning in her eyes, only now she holds my gaze and I feel its full intensity, no longer dimmed as it used to be when she would duck her head in submission. How did I never notice this passion burning inside my sister? I knew she didn't belong in Abnegation but how did I miss this raw wildness within her? And there's something completely new there too. Her gaze is hardened against me, for all the burning of her fury and pain and joy in our family reunited there is a cold, hardened, stony edge to the way she looks around her, the way she runs her eyes over the Abnegation. I suppress a shiver deep inside of me as I wonder where that hardness came from. What has she seen to place it there...what has she done?

It doesn't matter. The face in front of me is still my sister's. She's still a part of me and I'm still a part of her, whatever our differences are...or were. I don't even know any more. I don't know who I am and I don't know who she is. Most of all I'm not even sure if it matters; who were are, who we belong to. The events of tonight have made me doubt the very earth upon which I have stood my whole life.

I clutch at her and drag her into the room, simply grateful to see her again, to feel her under my fingertips. It has been horrible crouching here in the dark, listening to the gunfire all around us and not knowing who is alive and who is dead. My hands fly from her though the second she makes a pained noise and my feeling of jubilance bursts instantly as I take in her condition; bloody, soaking wet and clearly exhausted.

"Beatrice. Oh God, are you shot?" Her full name sounds strange on my tongue now, even though I've never called her anything else. I know she calls herself Tris and it's as if the old name belongs to an old girl. It doesn't fit the skinny, muscular, wild eyed teen before me.

She gives me a deep look, as if she can see straight through my soul, and almost shamefully I feel the hot sting of tears to my eyes as I find myself wishing we were back in our childhood when everything was so simple and neither of us were in the hellhole. As she goes passed me into the room I quickly wipe my fingertips over my eyes, pretending I'm just tired, when in fact it's to collect the hint of tears that threaten to fall. I can't cry though, not when Tris has been shot and our mother is out there somewhere and people are dying all around us.

I follow behind like a shadow into the room and watch her closely as her eyes skim over the huddled congregation. I wonder what she feels as she looks upon her old faction; friends, family. There is a flash of darkness followed by pain but I'm not quick enough to see whose presence has caused it.

The group stare back at her in silence, a sea of plain, grey, blinking bodies.

"How did you know about this place?" I press her quietly, breaking the silent tension in the room. Suddenly my heart leaps. "Did Mom find you?"

She nods simply but I feel my elation drop almost as suddenly as I read her expression. She's keeping it guarded but I still know how to study her. My mind goes blank as it struggles to comprehend what her response could mean. I have a sneaky suspicion my mind knows exactly what it means, it just doesn't want it getting through to the rest of me.

"My shoulder," she says in the same, simple, clipped tone. Perhaps it was pain I read, perhaps there is nothing about our mother she is keeping from me. I cling to that hope.

The Abnegation move swiftly into motion around us as Tris falls to her knees. It isn't a hurried, panicked movement. It is just like everything they do, swift, efficient, selfless. I see what the others are gathering and move quickly to the back of the room, where there is a meagre first aid kit stashed. Bringing it back to the flickering lamplight I see Tris accepting a drink of water from Susan. Susan's hand is shaking slightly as she holds the bottle for Tris, but there is no other sign of her distress, though her father is surely dead. My father moves forward to help Tris up and I step backwards, watching their interaction intently.

I was surprised by my father's response to my return and I wonder how he will treat Tris. It seems that the beloved motto of faction over blood hasn't held strong for him in this time. Whether he has turned his back on it consciously, or it is a deep, parental instinct I don't know.

I notice the glistening trail of water behind her and the drips still falling from her clothes. "Why are you wet?" I ask Tris as my father releases her from his grasp.

"They tried to drown me." She says it so simply, as one might comment on the weather or what's for dinner. Is she really that unafraid of death now? "Why are you here?" she asked, turning her gaze back on me. I step over and crouch next to her as the Abnegation continue to move around us in a grey blur.

"I did what you said- what Mom said. I researched the stimulation serum and found out the Jeanine was working to develop long range transmitters for the serum so its signal could stretch farther , which led me to information about Erudite and Dauntless...anyway, I dropped out of initiation when I figured out what was happening. I would have warned you but it was too late. I'm factionless now." The last words don't hold any self-pity. I'm simply stating a fact.

I'm surprised by a voice behind me and turn in unison with Tris to look at my father who glares as us sternly. "No you aren't. You're with us." He says the words with a gruff nod but I feel a rush of warmth and love towards him spread through me. He has every right to deny me, in fact he probably has a duty in the eyes of many people, yet he does not. He pulls me back into the fold of our family, not just him and my mother and Tris, the family of Abnegation.

I turn away with a small smile and pull a pair of scissors from the first aid kit. Tenderly I begin to cut the shirt away from Tris' wound but I stop when I see a flash of black against her skin. I remove the fabric entirely and stare, amazed, at the stark black symbol of Abnegation. I feel my father standing next to me and I know a similar look will be upon his face. My eyes move to the three delicate black birds on her collarbone. I'm surprised to see her brand herself to openly with the Abnegation symbol but I can't help but wonder what the meaning of the birds is.

I give my head a little shake to pull myself away from them and we return to the task at hand, the bullet lodged in Tris' shoulder. I wrap her hand in my own as she lies down on her stomach.

"Have you ever taken a bullet out of someone before?" she asks with a shaky laugh, a feeble attempt at humour that falls flat in the tension of the room.

I open my mouth to reassure her but my father speaks first. "The things I know how to do might surprise you," he says. Now it is my father who receives my shocked gaze as I stare at his profile beside me. I'm studying his face, wondering just who exactly he is, when a shriek from Tris brings me back to the present. I squeeze her fingers as she clutches my hand and grit my teeth against the sight of my father digging in her back with a blade. I'm not squeamish but combined with her screams it makes my stomach turn.

My father crows triumphantly and the bullet falls to the ground with a light, metallic noise, bouncing away from us. Briefly I wonder if I should retrieve it and offer it to Tris as a souvenir. I'd like to see the look on her face. Now as I look from her to my father the idea causes an irrepressible laugh to bubble up inside me. I know it's not the time to be laughing but I can't help it. Despite the hand I clamp over my mouth the laughter escapes into the room.

"What's so funny?" asks Tris in a pathetic little voice.

I look down at her. "I never thought I would see us together again," I say, giving her a smile. I try to ignore the fact that our family isn't truly together, and that I suspect we never will be, and that all around us the world seems to be crumbling to dust. I ignore all of it and I'm just happy for a brief moment that I once again have Tris.