A/N: Ah, Interstellar, even to this day I still think about the movie. So I thought I'd fill in a bit of the vague parts near the end.

Obviously… Spoiler alert

…

I Have My Children

Standing outside the doors was so surreal. He was going to see Murph again, his baby girl. Cooper's mind was a whirlwind of thoughts and memories, remembering the child he had raised, and the woman she became to be. He remembered her cries, the sheer anguish and despair in her eyes when she believed him to have abandoned her.

But in the tesseract, when she finally realised that he was the ghost, it seemed to lift a weight off of him. The joy in her eyes, the relief in her voice that he hadn't left her to die.

Gently, he placed a hand on the handle, pushed the timber frame open and stepped into the warm crème room. Men and women of all ages stood around the bed, turning to face him as he walked across the room. A father, maybe a few years younger than Cooper, ushered his children out of the way.

"Murph?" he said softly.

The elderly woman in the bed turned her head and smiled. Cooper's eyes began to glisten as a smile spread uncontrollably across his features.

"Hey," he said. "It's me."

"I know… dad," she beamed.

She held out her hand, interlocking her fingers with his. Sadness filled in the depths of his heart as he held the wrinkled fingers of his daughter.

"I told everyone how you helped me… but no one believed me. They thought I did it all by myself."

"It doesn't matter," Cooper said, shaking his head. "You're safe… you made it."

"We both did," she said, lifting her left wrist.

There was the watch she gave him, the leather looked a bit faded, and the glass had a few scratches on it, but it was the very same. She had kept it throughout her life.

A comfortable pause drifted between them, recalling distant memories; over a century for Murph, and a handful of years for Cooper.

"You told everyone I liked farming?" he asked with a chuckle.

Murph gave a soft laugh, but the noticed the sadness in her father's eyes.

"Don't be sad… I have my children… and you have your whole life ahead of you," Murph said. "It's time for you to exist."

Cooper sniffled, clearing his throat.

"I don't know how," he said.

"You can start by finding Brand. She's out there… setting up camp… alone in a strange galaxy. Maybe right now she's settling in... in her new home"

Cooper gave a slight nod.

"You gave me a full life... all of us. Now go. No parent should have to see their child die. I have my children with me…"

Murph gave him one last look, a final goodbye and a thank you, a final apology for not saying goodbye the first time, for accusing him of abandoning her. Cooper gave her one last smile, from father to daughter, and left. There were so many things he wanted to say to her, but some things were better left unsaid. He had kept his promise, and that was all that mattered.

…

Eulogy

Tears stung his eyes as he took to the podium, gazing out across the sea of faces. Some were old; others were barely into their infancy. Cooper's family or at least his daughter's family sat in the front row, wondering what he would say.

"Murph… our final moments together was short lived," he began, voice hoarse. "But it was enough for me to know that you made it. It was enough for me to know that even though I've missed your life, you still got to lead a full one. A parent, can only be a ghost to their child, and when they have to exist… when I had to exist… I had to leave you behind. I wish I had returned sooner, and I'm sorry I didn't. I wish, I had the chance to watch your family grow up in the world… but seeing them… it's still a bit… unreal. I'll miss you Murph… you were the reason why I left, and why I came back, and why, we're all still here. I love you. Until we see each other again."

…

Time to Exist

Awe, it was something that Cooper was trying to come to grips with. These people here, they were in awe of him. His guide, Sanji Khanbu had tried his best to remain professional, but it clearly shone through. Cooper, whether he liked it or not, was a legend to these people. Through the countless interviews of his daughter, Murphy had hero worshiped him. She was their saviour, the person responsible for mankind's exodus. All the scientific minds hailed her, and she in turn, credited her father at every turn.

Sitting on the front porch of his replica home, Cooper nursed a bottle of beer, with TARS at his side. His eyes gazed out across the darkening artificial sky, just taking in the cylindrical shape of the station.

"No parent should ever see their child die," he remembered Murphy say to him.

She was still his Murphy, right? His baby girl, the one who he would hold at night while she had a fever, was she? Seeing her so old and fragile, knowing that he had missed her whole life, it hurt. Her children were older than him; even her grandchildren were older than him.

He remembered their faces, the way how they looked at him when he first entered the hospital room. They were unsure how to act, what to say. They didn't know. Murphy had repeatedly told everyone that her father had been the one looking out for all of humanity, that he was the one who saved them. Despite that they all thought her work was solely hers, they honoured him because he was her inspiration. He was the guide of their saviour, both in spirit and in form.

He remembered holding her hand, kissing the wrinkled skin softly as if she was a baby. Cooper had hoped that he would've seen her as an adult, barely into the fourth decade of her life, it would've offered new insights, standing on equal footing with his daughter. But it wasn't meant to be. She had grown old, found love, and had her children. As for him, he was the ghost once more, a relic of the world he was either too old or too young for.

He should've been the one to walk her down the aisle. Be the mark of elderly wisdom for her children, and the very same man who would spoil them when she wasn't looking. But he was still here.

"Was it always like this?" TARS asked.

Cooper gave a soft smile, looking across at the pristine white paint on the timber panels.

"It was all covered in dirt," he answered.

TARS settled beside him, providing unspoken company.

"Find Brand… she is still out there, alone. Wondering if we succeeded."

Releasing a tired sigh, Cooper pulled himself up from his chair. There were still so many things to deal with, but without Brand, it all felt so insignificant. Find her.

It was time to exist once more.

…

Finding Brand

"Sir!" a Captain saluted.

Captain…

Cooper blinked thrice; it had been a long time since he had seen anyone in uniform, let alone combat gear.

"At ease," he said.

It had been so long since he had last said that. Before NASA, he had been a Colonel in USAF.

"I thought the military was disbanded."

"It was reactivated sir, primarily for the defence of our fleet."

"Air Force… or Navy?"

Most science fiction franchises had often depicted the Navy as the ones who took to the stars. It seemed illogical why the Air Force was left out, and Cooper wanted to see what had played out.

"Airborne, sir."

"Army?"

"Yes sir."

Cooper shifted his weight from one leg to the other, moving out of the passage way.

"What happened to the Air Force?"

"Still here sir."

"Navy?"

"Just restarted to man the stations."

"Carry on."

"Yes sir."

Walking down into the lockers with TARS in tow, Cooper popped a seal for one of the containers, pulling out a black flight suit.

"You know, I could've easily told you that information without sounding like I have a stick up my rectum."

"You're a robot, you don't have a rectum."

"And that nice Captain back there had one in his. Would you like to see my preliminary scans?"

Cooper gave a soft chuckle.

"No."

"Shame… I did a full MRI."

The new suits were a bit more form fitting, and had hardened plates bolted atop the nanotech mesh. It felt like a second skin, assisting with movement rather than hindering like the first iterations. Navigating his way through the labyrinth of utilitarian hallways, Cooper entered the launch bay.

Picking out one of the starcrafts, he was happy to say that the controls had barely changed at all.

"Just so you know… this action is somewhat illegal," TARS said.

"I know… maybe a little starpower will get us through."

"Celebrity status… could work. But doesn't seem fitting."

"What do you mean?"

"I'm thinking something more along the lines of… Messiah."

"Too biblical," Cooper said, shaking his head.

The canopy descended and hissed shut.

"I'll have you know that, that title was inspired to me by a video game."

"Now that's just sacrilegious," Cooper chuckled, starting up the engines.

"I'm a robot…"

"Ghost inside the machine."

"…"

"What? No witty reply?"

"I'm a robot. I fear no divine power."

The doors retracted into wall, beckoning the starcraft to enter the airlock.

"Well, you called me a Messiah, and I did technically revive you. So wouldn't that make me a divine power?"

"If I blow open this cockpit… where's your divine power then?"

"Just… plot a course to Edmunds."

"Course confirmed."

…

Entering the atmosphere, Cooper could feel the feedback shake a little as the starcraft made its descent. Breaking through the stratosphere, he could see the blue hue of the air, and curtains of white clouds shifting with the currents.

"At least it's not frozen," he breathed uneasily.

He wondered what he would find. Brand's signal was strong, but would she still be alive? Would there be a colony waiting for him on the other side? If she had left the gravitational pull of Gargantua before him, then she would've aged more than him, that's how relativity worked. But, would she be dead?

"Chin up, I'm sure everything'll be fine," TARS said.

Taking over manually, Cooper guided the vessel over the mountains, flanking his speed.

"Open up comms, all waves."

"Done."

"Brand, are you there? It's Cooper."

Nothing.

"Brand, do you read me?"

"I'm getting nothing here, just… echoes. We should be coming up on her base in five."

Testing the comms, Cooper tried again.

"Brand come in."

"CASE here… Doctor Brand is in cryosleep."

"What about Edmunds?"

"He didn't make it. According to CAL, isolation got the better of him."

Cooper let out a deep breath; he could feel his heart hammering in his chest. He barely knew this woman. Well, that would be incorrect. In the short time they had spent together awake, he had picked up on her nuances, a trait he picked up at Flight School. Cooper considered himself a logical man, he rationalised everything he came across, it was in his nature to do so. So why did he want to find Brand so badly?

Was it his daughter's last words? Or was it something more? A connection to the world he left behind to save, a world that no longer existed because it was a foundation to the present.

"There's her base… and the lander."

Unlike seeing the Endurance, Cooper held his breath as he bought the craft in for landing. This was it, the moment of truth, the moment when he could tie off all loose ends and figure out his next steps.

Tapping the touchscreen, the landing gear descended as the thrusters gently lowered him onto the planet that could be humanity's new home, or the first of many more worlds.

"For future references, maybe we should go with Doctor Brand's gut feelings."

"Yeah, don't have to rub it in TARS," Cooper said, checking the environmental readings.

The air was clean and breathable, but the grounds here looked arid, but he did remember seeing greenery from orbit. With the canopy pulled back, Cooper clambered out of the craft first, followed by TARS. He stepped out onto the rock and sand, looking back and forth at the base. The American flag fluttered in the breeze with the flag of the Endurance beneath.

They didn't look faded; in fact they looked like they had just been taken out of the wrap. A small smile crossed Cooper's lips as he jogged over to the main prefab shelter. Prying open the console cover, he tapped entered in the command code.

"Verification required."

"Allow me, sir," TARS said.

Rolling up to the terminal, the robot's limbs extended and split into finer apertures, to interface with the computer mainframe.

The airlocks hissed open, cycling the two through into the main area.

Reaching up to his helmet seals, Cooper popped the lock. Breathing in the prefab air, he looked around the neatly kept area.

"Where is CASE and CAL?"

"Here sir," the CASE answered, slowly walking out into the open. "You may proceed the waking up procedures."

"How… how long?" Cooper asked.

"Two months," CASE answered. "The foetuses are developing and will be ready for when the rest of humanity arrive."

Gently grasping on to the latch, Cooper twisted it. The protective ceramic plate slid back with a soft hum, revealing the glass chamber beneath. He pulled the canopy away, allowing the gel bed platform to rise out of the water.

Running his eyes along the transparent plastic body bag, Cooper took off his black gloves, placed them gently on the counter beside him, and reached for the zip lock. With infinite care, he opened the bag.

"Vitals are normal sir, she should be waking any moment now," CASE said.

Amelia slowly twitched as her muscles began to clench and relax.

"Hey, hey. Easy. Easy," Cooper said, gently lifting her up into a seating position.

Brand's eyes opened, her dark brown orbs locked onto his grey blues.

"C-Cooper?" she whispered softly.

"Yeah, it's me," he beamed.

"I-I… Cooper? It's… it's… you can't be…" tears began to stream down Brand's rosy cheeks as she choked back a sob. Quickly she pulled him into an embrace, wrapping her arms tightly around his neck while burying her face into his suited chest.

"Cooper? You… I saw you… Gargantua."

"Shhhh," he cooed, rubbing her back. "I'm here. I'm okay."

"God… I… I thought… I thought I was the last one," she sobbed.

"Well do I have a story to tell," he said with a light chuckle, cradling her.

Pulling away from Cooper, Brand wiped away the last of her tears, and climbed out of the pod. Unfurling a thermal blanket, Cooper wrapped the warm sheet around her, giving her a reassuring pat on the shoulder before easing himself onto a nearby crate.

Amelia blinked a few times, and swallowed the built up bile. She rubbed the bridge of her nose and looked at Cooper disbelieving.

"I'm not going anywhere," he said.

"How long?"

"Two months."

"How-How did you survive?"

"When we detached… we went into the black hole."

"But relativity… you two shouldn't have been able to leave…"

Another smile flashed across Cooper's face.

"You're not going to believe it."

"Right now… I'll believe in Easter Bunnies."

"Your father said someone placed the wormhole near Saturn for us… and those very same people saved me."

Cooper rubbed his hands together before fishing through the crates for a cup and a hot chocolate kit.

"When I entered the black hole, the Ranger ran into some debris, so I had to eject. And then… here's the weird part," he said with a bark of laughter.

"We met them," said TARS.

"You remember when you shook hands with that entity on the ship?"

Ameila looked straight at Cooper, blinking twice before exhaling.

"How did you know?"

Emptying the hot liquid content into the cup, Cooper stirred the chocolate and milk powder before handing it over to Brand.

"Thanks," she murmured as she held the mug in the palm of her hands.

"Because… because that was me."

Brand arched both eyebrows high into her forehead, beckoning him to continue.

"When… when I went into the black hole, in the wake of the event horizon… I… I thought I died. The Ranger was torn apart, but… but then I fell into something. It… it was like an elevator shaft at first. And then… when I came to a stop… I realised… and you're not going to believe this, I realised I had stopped at Murphy's bookshelf."

Amelia leaned her head forward, holding the thermal blanket around her as her lips slightly parted in disbelief.

"The people, the ones who put the wormhole at Saturn… it was them."

"What are you saying, Cooper?"

"TARS and I… we were in a tesseract. Like you said, these beings, time is another physical dimension for them."

"You travelled back in time, to manipulate your past?"

Cooper pursed his lips.

"No… I was there, from the beginning. It was like future me, already manipulating everything. They built the place so that I could understand. Translated the fourth dimension into something I could see… They are us… future humans."

Tears began to form in his eyes.

"I saw my daughter… as a child and an adult. I had TARS convert the data from the black hole into Morse… Murph solved your father's equation."

Brand ran her thumb against the rim of the metal mug, looking at the floor in deep thought.

"We… we did it?"

Cooper nodded, gesturing to his black flight suit.

"I got to see her again," he said softly.

Amelia scooted forward.

"She was so… old. But it was still her. She had grandchildren, and they were older than me."

"Cooper," she said gently, placing her hands on his. "We made it?"

He nodded.

"Murph's equation, it helped the engineers design ships that would take everyone off Earth."

"Everyone made it?" a smile spread across Brand's face.

"They even have a station named after her."

"Meeting her... it must've been…"

"Surreal," Cooper finished.

He gave a soft weary sigh as his gaze shifted to the crates on Brand's right.

"A few years for me, a century for her…"

"I'm sorry," she whispered.

"Don't be... I still got to see her again."

"If it weren't for my father… maybe you would've been able to see her grow up."

"I know what you're trying to say," Cooper said, referring to Murph's anguished message. "But… if it wasn't for your father, we would've died a long time ago."

"So what do we do now?" Brand asked, looking around the room.

"We just sit down… and wait."

"Just sit down," Amelia repeated tiredly, running her thumb along the rim of her mug. "That doesn't sound too bad."

…

A/N: Well what did you think? Leave a review and let me know.