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We go out of the pit, which is bursting with people each having their own reunions, to a corridor around the corner. I'm desperate to tell him about the plan but I know he wants to talk about his day.

"Let's talk about you first. What happened whilst you were away?" I ask Tobias.

"We went near one of The Smokers so called 'bases' to find out that it wasn't it was just small village of innocent people, we questioned a few but it was obvious they had no idea what we were talking about."

"They could have had a small memory swipe like I did deleting all the memories that had anything to do with The Smokers, so maybe that's why they didn't remember." I suggest.

"Probably Chloe's idea. She seems to enjoy making people forget things." He spits angrily.

"Tobias, calm down. I have good news." His eyes light up with hope. "The Erudites, they have worked out how to get my memory back."

"Wow. That is good news!" He hugs me happily and kisses my forehead.

"I just have to ask, do you trust the Erudites, they've done a lot to us in the past?"

"I completely do." I say honestly.

"They asked me to meet them in the furthest room at the back of the hospital. We have to go now."

He takes my hand and we walk to the room.

I'm happy it's getting sorted but I keep this about the gas and the damage its cause the my body. Even if this works and I do get my memory back I will still have this gas rotting my brain. If we don't get the cure, I'll probably die and Tobias will have a break down and my friends will be depressed. One thing at a time, get this sorted then think about the gas.

As soon as we get the out destination, Alaska runs out of the open door

"You not staying to watch?" I ask her.

Something's wrong, she really tense and her teeth are gritted. I think she's about to have an hallucination but she's resisting it, for the moment

"Let's go somewhere private." I say to Alaska, she needs some help.

"Now or never, Tris." One of the surgeons calls out.

"Go, Tris" Alaska shouts.

I don't want to leave her but she's strong, she can handle it. Just to make sure she fine I ask Tobias to go with her.

"Okay. Stay strong Tris. I'll be there when you wake up." He promises. I can see panic already forming on Alaska's face.

"I'll see you soon then" I quickly peck him on the lips.

He takes Alaska away and I turn around and walk into the room.

There are two Erudites, Charlie from training and another woman called Georgia and Christina sitting on the chair next to the metal hospital bed.

"Alaska's not feeling really well, Tobias is looking after her for a bit." I say.

"Will you do it without him?" Christina asks.

"I guess I'll have too, anyway I've got you here." I smile.

I do want him to be here, holding my hand but I know that Alaska need him more than I do.

"So what's the plan Doctor?" I ask Charlie.

"Firstly I need to examine your brain, to see what exactly Chloe did to you. It's just a few scans,stay still."

I'm not sure what scan they did but it involved weird machines and the sound of cameras clicking.

"Just what I expected, Chloe inserted a tiny chip in the memory part of the brain which acts as a memory blocker, she must have targeted the memories of Four."

"How will you get it out?" Christina asks before I can get a word out.

"Surgery. Don't be alarmed, it's right under the surface of your brain so we can carefully take it out then you should remember everything."

"What is the gases defence system forces you to stop" I ask.

"It happened before the gas, we are pretty sure it won't effect it at all. This is the only time I'm going to ask. Are you sure you want to do this?" Georgia asks.

I can't back out now. I just really hope that the gas doesn't interfere with the operation.

"Of course. Can you knock me out before you start."

I really don't want to be conscious when it happens and if anything goes wrong I won't feel it.

"Yes, we can." She gives me an injection.

It all gets too real too fast "What it goes wrong?" My heart races and my breathing quickens.

"Tris it won't." She grabs my hand."Tris, we'll all be here when it's finished with a massive cake all for you. Just let them do their thing."

"It better be chocolate." I manage to get out just before it takes me under.

It's strange. It's like a dream except I'm not asleep and it's just black. Without any concept of time, I have no idea how long it's been. After what I think is a few hours, the darkness turns lighter and I can open my eyes again. It takes a few times to open them fully. Alaska, Tobias, Christina and Zeke wait around the bed with the promised cake.

"She's awake!" Christina squeals.

"Hey." I croak

"Are you alright now Alaska, don't feel ill anymore." I ask

"I'm fine but never mind me, how are you?!" She asks excitedly.

"I'm fine." I surprise myself that I am as I said, fine. I expected to feel sore or have a huge headache but apparently not.

"Why don't you guys eat that cake somewhere else so Tobias and I talk?"

"You want me to save you some?" Zeke asks. I'm not hungry at all, I'm tired.

"No, you can eat my portion."

"Whoop!" He jumps into the air and lifts his arms up.

They leave and Tobias jumps on the end of the bed.

"What did I say to you about four months ago on the Ferris wheel?"

I search my memories for a second. "You told me that Marcus isn't in your fear landscape anymore, instead it's seeing your loved ones turn their backs on you."

"You remember!" He lasts out a relieved gasp.

"I remember everything." I move closer and we kiss so long that I'm out of breath when we finish.

"Come under the covers, i'm tired" I say once I've got my breath back.

He lies on his side arms wrapped around my stomach. "You are actually feeling sleepy?"

"Yes I am. Goodnight"

"Goodnight" he whispers.

Almost immediately afterwards, I fall asleep.