Here is a super long chapter for you guys. You will review this when you've finished and be like "Are you serious? This is supposed to be Eris!" And I will be like: "Hey, chill out. This is the last of Fourtris you will ever read in this story."

I only did this because of the plot. It needs to make sense. And in the next chapter, Eris is guaranteed.

Don't be put off, there is still some Eris in here xD Like... enough Eris for now.

Fair warning, this has some light rape themes. It isn't rated M yet because it doesn't get too hardcore or anything. It will be fine.

Thank you for all the reviews and please enjoy this :)

She was pacing the empty training room. Her head was in her hands. After everybody left, she stayed, deciding that she needed an extra bit of agility practice.

The punching bag looks worn out. If it was a person, it would be long dead.

Tris' simulation today was by far the hardest. She remembers how she struggled as soon as the serum kicked in:

The room was dark. There were echoes of laughter all around her, but every time she turned to face the sound, it disappeared, replacing itself with an image of a friend. First it was Christina. She had a vacant look on her face. It made Tris shudder.

A manlier laugh behind her. She turned around, a gasp on her lips. Will.

He wasn't laughing. He had the same expression as Christina did: vacant and running on rage.

"Give it up, Stiff," Al's voice made her jump. She turned to him, seeking the tiniest smirk playing on his lips. It wasn't a friendly smirk. It was pure evil.

She tried to move her hands but they wouldn't budge. They were tied to something. Tris gasped loudly, trying to flex her wrists, wincing when dry ropes dug into her skin.

The simulation started changing. The dark room swirled around Tris, making her dizzy. But then suddenly a beautiful landscape flopped down like a canvas, illustrating ripe plums on trees and fluffy clouds above them. It made Tris' heart slow down slightly, but when she saw her angry friends were still in the corner of her eyes, it all escalated.

"Burn her up!" Peter boomed, running up to her with a burning torch.

"No! Get away from me!" she screamed, perspiration colouring her face.

He laughed in response, lighting up the dry wood beneath her she hasn't noticed before. It flared up instantly, changing the temperature. Her feet started burning. The heat was unbearable. It made her choke and cough and scream. She needed to find an escape quickly.

Slow your heart rate. Take deep breaths. This isn't real.

She closed her eyes and imagined rain. Heavy rain. It was raining down on her and the monstrous blaze, extinguishing them both.

When she opened her eyes, she saw it. Rain. It worked.

She laughed in relief, feeling the roped loosen around her wrists. The sim Christina, Will, Al and Peter melted, washing away along with the flood that came.

Then her landscape changed.

She was in a box. A glass box. Oh-no. This has happened before. And Four was never impressed about how she tackled this fear. But to her, there was only one way out.

She turned to the glass immediately, placing her hand on it. It cracked instantaneously, spilling the water out, and Tris along with it. The water was everywhere. It started drowning her. She couldn't breathe.

But then her landscape changed again.

There was a hard surface beneath her. The water around her was hotter. It was so hot, it sent shudders down her legs, creating goose bumps. Are fear landscapes supposed to feel this good?

She sat up slowly and looked around. Everything was grey. The walls, the floor and the ceiling. But this wasn't Abnegation. There was a big window overlooking the whole city. She was in Dauntless.

This is new.

When she looked down at the water again, she realized that froth and bubbles coated her bare arms.

Bare arms. Bare knees sticking up.

She was in a bathtub.

"And you said you were more of a shower girl," a dark voice filled the room. Tris gasped loudly, suddenly terrified that a person was in the bathroom with her. While she was naked.

Her hands went up to her chest as she sank lower into the water. From there, she peeked up, noticing Eric near the door. He closed it with a slam, fastening a hook into a loop on the wall, evidently locking them in.

Her heart started beating again.

She smiled politely, like she would in real life. What was going on? Was this a new fear?

Eric took his shirt off, tossing it onto the tile floor. Tris watched him carefully, sinking further and further the closer he got.

His pants were off now, pooling at his legs. She has seen this before. That night after Edward was stabbed. She found herself at Eric's door. And when he opened it, this is what he looked like. She realized then that simulations can't create an entirely new picture. The serum uses images from the past, linking them together and creating a new context in her brain.

Well, that made it easier. This is what she could concentrate on. It's just science.

Once he was in his boxers, he took a seat at the edge of the tub, ravaging Tris with his gaze. He could see though the clear water. There weren't enough bubbles to hide her naked form.

As her breathing became laboured, she pulled her knees up to her chest, keeping her eyes locked on his. This isn't real.

Eric leaned down slowly, closing his eyes. She knew what was coming next.

Their lips met. But it felt strange. Eric doesn't kiss like this. His sim is gentle. The real Eric would have bruised her lips by now.

Tris gasped loudly as one of his hands wedged between her thighs. She jerked away from the kiss, fear striking at her when he didn't let her pull away.

"Stop," she mumbled against his lips. But he didn't.

Instead, she remembers when his hand fell further into the water, his thumb grazing at her entrance.

At that point, tears started welling up in her eyes. The sim Eric felt her pain and pulled away from the kiss, an evil smirk flashing across his face.

"Aren't you Dauntless?"

But before he could go any further, before he could win, she punched him in the face. She knew she was never going to be stronger, but this wasn't real. Anything was possible.

When his body collapsed on the tiled floor, Tris awoke from the simulation, screaming and sweating. Four's hands on her didn't help.

Now she is wandering the training room, wincing at the memory. Four witnessed everything. He saw Eric in her simulation. He must know about them. Despite the fact that she clearly stated they weren't dating. And they're not. They are not. She doesn't even think of him in that way. He is dangerous.

But Four won't believe her.

Tris releases a long sigh, chewing on her fingers. Her nails have reduced in size significantly. This is proof of what stress she has to endure every day.

She hears a loud bang, which goes on to echo around the whole training room. Automatically, she dives towards the nearest wall, holding onto the cold stone as she tries to see movement in the darkness. At first there is nothing. But then there are footsteps. And then Four emerges from the shadows.

He sees her, and a small smile plays on his lips. But it is gone as fast as it appeared.

"It's late. You need to sleep. The final test is in two days," he says, coming to a stop in front of her. She watches him with wide eyes, still clinging on to the wall, as if it is still concealing her figure.

"I can't," she answers honestly, fear shaking her voice.

Four frowns slightly, trying to see though her. He seems to realize that she is not faking anything. She is genuinely petrified. That is when he sighs, stepping closer to her.

He lowers his voice, even though there is nobody else in the hall, "Why do you say that?"

Err, because I am not tired? Tris is about to say. But she doesn't. She hears a hint in his tone. He is asking her something important, which would not class as important if anybody overheard the conversation. He knows everything. She knows that. And maybe he is the only one who can help her survive. She needs to take a risk. She needs to trust him. Just for now. This is genuinely her last resort.

She folds her arms over her chest and looks up at him- for the first time in a while- fearlessly.

"You know why," she answers. Four's eyes flare up slightly and for a moment Tris regrets ever letting him in, but then that flare is extinguished and he nods- sadly- looking down at his feet.

He is harmless.

"And as soon as the others will find out, they're gonna kill me," she whispers, her vision blurring with tears. To her surprise, Four remains in his little bubble. He knows that she is strong enough. He doesn't need to comfort her.

"I am not going to let that happen."

SHSHSHSHSH

Four unlocks the metal door which unravels a whole new world for Tris. This is where she practises for her final test. This is where all the simulations happen. What are they doing here?

She waddles in reluctantly, widening her eyes when the first thing Four begins doing is screwing on the needles to the syringe. There are two little orange containers on the tray. He puts them in place before looking at her curiously.

"Shut the door," he says, wondering what's taking her so long to catch on. They are obviously going to go through a fear landscape, "You're gonna practice."

"In my fear landscape?"

"No, in mine," Four says, shrugging his warrior jacket off, "We go in together."

He told her that he was going to help her with something. She didn't know that he was going to let her inside his head. She walks over to him, still unsure about the whole idea.

"Have you ever done this before?" she asks, her eyes now completely dry.

"No, I haven't," he replies.

"Are you sure you want to?" Tris would never let anybody inside her head like that. After what she witnessed today. Eric. Her in the bathtub. If anybody saw that up close, she would be embarrassed for the rest of her life. And afraid. What you see on the screens is pixels. So it is nothing compared to actually being there.

"Why wouldn't I?"

"I don't know," she laughs, "You haven't told me anything about yourself and now you're just going to let me inside your head."

"Are you afraid of that?" he raises an eyebrow playfully.

"You're not?"

"No," he shakes his head, leading her over to the recliner. Well, if he is this confident about a stranger seeing his fears, they surely can't be all that bad. Heights. That is not embarrassing. But what else?

She watches him insert the needle into his neck after laying down in the chair. She doesn't know what to do, so she awkwardly sits on the edge watching him. Does he really trust her?

He pulls the needle out slowly. It's her turn.

Tris is about to grab the syringe off him but he keeps it to himself, then places his warm hand on her neck to keep her head in place. He inserts the needle and pushes down on the plunger. She doesn't flinch. She has been through this a dozen times. Four keeps his eyes on her, trying to say something again. But Tris still doesn't know what he is trying to say. She knows he means well. She knows that. But that is it. She can't tell how bad his fears will be. She can't tell what he feels towards her. She will leave that to time.

Tris lays down on top of him, trusting his arms to keep her within the boundaries of the chair if the fear is too bad and she has to thrash away. He connects a wire to her temple after doing the same. And then the reality slowly shifts beneath them.

Tris opens her eyes when a cold breeze brushes past her face. There is a clear sky above her. The air is too cold to be near the ground. So she looks down.

As she expected. They are miles above the ground. Heights.

"Fear of heights," she chuckles nervously, "Not surprised."

She looks at Four. He is already starting to sweat. He grips the ledge that is keeping them from falling with so much force, Tris begins to question its solidity. Shouldn't it have broken by now? She can tell that his heart rate has increased by the way he is panting.

The height begins to excite her. Finally. Something she is not afraid of here. She stands up, keeping her arms away from her body for balance.

"It's not real," she informs, "We can just jump-"

"No," Four strains, forcing himself to stand like Tris, "Divergent would jump. Dauntless would get to that building," he points to a dome-shaped roof in the distance. About thirty yards away from them. It doesn't seem like much of a challenge, "If you wanna pass. If you wanna avoid discovering, you have to do everything the way a Dauntless would do it. You have to find some tool; some method to survive."

Tris nods slowly, beginning to understand. She would have never thought of this in her fear landscape. This is why she came across as Divergent. This is what puts her is so much danger. And Four is helping her practice. He is showing her the ropes. Why would anyone do that unless they cared?

A small smile spreads across her face as she follows Four towards their destination. The strong gale threatens to blow them away, but they keep their balance, until finally they reach that building.

They struggle to fit into a small room without touching. Once they are both in, the walls start clamping down. From all angles. Four responds quickly, jumping at the nearest wall in an attempt to stop it.

The landscape changed.

The walls are made of thin metal, and produce an unpleasant creak when they move. Tris cringes slightly.

"Fear of confinement," Four explains breathlessly, spreading himself out, "You have to find a way of stopping it. What would a Dauntless do?"

It takes Tris a painfully long five seconds to understand that he is giving her instructions. Like a teacher. Her eyes dart around the shrinking box uselessly. How is she supposed to stop this? Her heart rate begins to rise slightly. The walls are going to squeeze them to death. They are in a crouching position already.

All of a sudden, she sees metallic screws scattered around the floor. She jumps at them, grabbing a handful before stuffing them in the gaps between the walls.

"Good," Four compliments, his breathing uneven.

The screws start popping out. The force of the walls is too strong. Tris grunts in frustration as she shoves them back in, the rusty metal hurting her small hands.

"Take your time," Four says, "I'm just enjoying myself in a shrinking box."

She gasps when the air becomes stuffy. It is getting harder to breathe. And the walls are still tumbling down on them. She pulls away abruptly, pressing closer to Four. She feels his heart hammering through every inch of his skin.

Even though it is unbearably hot, he wraps his arms around her, clearly concentrating on breathing. When the upper wall touches Tris' head, she shuts her eyes. Was she too slow?

But when she opens them, the walls are gone.

Another change in the landscape.

They both breathe a sigh of relief. Cold air floods their nostrils. Their sweat starts to dry out in the light breeze. It is so good to be out.

Tris realizes that they are still super close and pulls away awkwardly. She wishes that she would do that with Eric. But how could she? Now that she knows what he is up to? His main priority is to find Divergents. And murder them at the hands of Jeanine Matthews.

She pulls away slowly, not wanting these thoughts to distract her right now.

When they stand, she sees a table. It is brightly lit by a lamp above. And so is a girl on a chair. She appears to be tied up. Tris doesn't recognize her. She must be someone from Four's past. Or present.

"As a Dauntless soldier, you have to follow orders you don't always agree with," Four explains, picking up an object from the table.

Tris sees now that it is a gun. A gun. Is he going to use that in self-defence? Is the girl going to attack? She raises her hands to her face, ready to block any abrupt punches coming her way.

"Who is she?" Tris asks, not taking her eyes off the girl.

"She's an innocent," he explains, clicking off the safety on his gun, "I have to kill her."

Tris lowers her hands, feeling stupid. How can the girl attack if she is tied up?

She watches Four raising his gun up to the girl's head, as does the sim. Her eyes are so innocent.

"But I can never do it," he says, the gun shaking in his hand, "Unless I look away."

Tris slides her hands into her pockets when she senses no real danger waiting for her. He is afraid of killing people? Innocent people? Wouldn't anyone be?

She readies herself for the loud bang. And then it comes. Faster than she expected. It is followed by a thud. The girl is dead on the floor.

Four starts backing away slowly, tears welling up in his eyes. He is still watching her. In her own pile of blood. Tris sets a hand on his back carefully, in an attempt to comfort him. His breathing starts slowing down. He turns to her and nods. He is okay.

The ground beneath them shifts again. Tris has to hold onto Four's arms to keep her balance. They only went through three fears and she feels exhausted. She didn't even have to do anything.

This landscape is more familiar, Tris has been here before. It looks like her house. Grey walls, grey table, one window. This is Abnegation.

"Why are we in Abnegation?" She can't help herself. She needs to know.

Four looks over his shoulder at her, giving her a hard look, "The last fear is your worst fear." What does that mean? That explains nothing.

She has no choice but to follow him deeper into the house. They reach the living room, where Tris' living room would be. All Abnegation houses have the same interior. She bumps into Four's back when he stops. This is where the fear begins, doesn't it?

She looks at a figure emerging through a wall. It's a man. He has something in his hand. Four backs away slightly, bumping into Tris again. She comes to stand by his side. The figure is Marcus.

"Marcus had a son," Tris whispers, reality kicking in. Oh, no. Her eyes widen, "What was his name?"

"Tobias," Marcus answers for her. As soon as he does, the image of a strong and powerful leader disappears. He becomes an old, sweaty man with a belt as a weapon. A child beater. So the allegations were true.

"Tobias," another Marcus says, emerging through a different wall. Four keeps backing away until the same voice whispers behind him. His name.

They turn around in unison, Tris with her hand on Four's wrist. And Four with his hands clenches in fists at his sides. He doesn't look as strong as he used to. This is the first time when Tris actually saw him being defeated. By an illusion.

The visions of Marcus' circle the couple. They all hold the same look. They all hold the same belt. There are not real. But Four doesn't realize that. He is too afraid to do anything. Like Tris was when Eric appeared in her fear landscape.

"Tobias," one Marcus comes closer, "I'm trying to help you to be better."

Tris looks up at the boy in shock, waiting for him to respond. But he doesn't. Not even when Marcus raises his weapon, about to strike.

"No!" Tris yells, jumping in front of him. The belt stings as it wraps around her wrist. It slows him down. When Marcus pushes her away, Four punches him in the face. And then they both wake up.

Tris sits up, panting heavily. But not as heavily as Tobias. Tobias. That is his name.

She turns to look at him, knowing that he will be there. This isn't a simulation. He isn't going to fade away and appear somewhere else. He will be there. This is real life.

Review and tell me what you thought :)