A/N It's the final chapter! Yaya I'm so excited! Are you excited? I'm excited. There's spoilers for Infinity War, obviously. PREPARE TO HAVE YOUR FLIPPING HEARTS BROKEN!

Chapter 11: The Saddest Chapter

(Percy)

Silence fell. The place was eerily quiet. The trees themselves seemed to be holding their breath. Then there was a sucking sound. A portal appeared, and out stepped a huge purple guy with a golden gauntlet.

With a sickening feeling, Percy realized that there were already five glittering gems. All that was missing was the Mind Stone. Vision's stone. And all that stood between Thanos and Vision was a ragtag bunch of tired heroes who were losing hope fast.

"That's him, Cap." Bruce said. Steve nodded. "Demigods, you're our last resort. Stay to guard Vision. We'll take care of Thanos."

Thanos started making his way leisurely towards Vision like he had all the time in the world- and Percy supposed he did since he now had the Time Stone in his grasp.

The full might of the Avengers rushed Thanos but maybe, deep down, Percy knew it wouldn't be enough.

Bruce reached Thanos first, charging towards him while wearing the Hulkbuster. Thanos used the Space Stone to trap him in the rocks. Steve was sent flying by purple energy without even being able to strike a single blow.

T'Challa, in full Black Panther armor, his body completely charged with kinetic energy, attacked Thanos, but he was slammed into the dirt, his suit flickering off. Sam flew towards Thanos and shot him with two pistols, but was suddenly unable to fly anymore.

Vision seemed to be pleading with Wanda. She shook her head violently, but finally, with tears in her eyes, she shot a stream of red energy towards Vision's head.

Okoye powered the vibranium on her spear and threw it towards Thanos, but the Power Stone stopped it. Thanos flung her aside and trapped Black Widow in inescapable bands of earth. Percy's ADHD wondered, off task, if Gaea had noticed that Thanos and Groot were controlling her. If she had, she probably wasn't very happy about it.

Groot slammed his fists into the earth to wrap Thanos in cables of roots, but he broke them easily. Captain America slid under Thanos and punched him in the gut and throat. Thanos didn't even blink, and made to slam his gauntlet on Steve, but Steve caught it, yelling from the effort.

Thanos merely slammed Cap with his other fist and he fell to the ground, unconscious. All that stood between the Mad Titan now was five battered and bruised Heroes of Olympus.

Thanos stopped briefly. "So, the little demigods are the only things that stand between me and my goal. Your friend Jason gave it away. Apparently he's 'The Son of Jupiter'." Seeing their shocked faces, Thanos smiled. "Yes, I've met them. They fought bravely. But I destroyed them, just as I'll destroy you!"

Hazel screamed and a thousand pounds of Vibranium responded, slamming into Thanos. For a moment, Percy thought they had won. Then there was a bellow and the rocks exploded, this time hitting Hazel and slamming her against the cliff-face. She slumped to the ground.

"Knock-back prank." Leo muttered, and his entire body burst into flame. Percy hoped that he wouldn't hurt himself even more from his broken leg. Nico yelled and a skeleton army rose from the ground and attacked Thanos. The four demigods gave war cries and attacked Thanos, using the full extent of their powers.

Thanos looked amused. Like, actually amused. Then he swept his gauntlet in an arch. Nico's skeletons crumbled into dust. Nico himself collapsed, exerting more of his power than he had in years. Meanwhile Wanda added her left hand to the tearful effort of destroying Vision.

Leo's white hot flames melted Thanos' breastplate, but he used the Power stone to slam him deep into the dirt, making a Leo sized hole in the ground, cartoon-style. There were two demigods left. The oldest, the veterans of so many battles. Percy and Annabeth charged into battle like they'd done so many times before, but this may be the last time.

They attacked like demons, but even the combined might of Poseidon and Athena could only last so long against a being like Thanos.

Percy risked a glance behind him. Vision's stone had cracks running through it. Wanda was putting all of her energy into destroying the android she'd loved.

That one glance nearly cost him his life. Thanos swung his gauntlet and would have destroyed him but Annabeth screamed, "No!" She cast herself between them. Percy turned to see Annabeth catching the gauntlet, absorbing most of its strength, but even she, who had held the full weight of the sky for a day, couldn't hold something like that forever.

Thanos used the Space Stone to trap her between the rocks next to Bruce. She struggled helplessly, but eventually she stopped. Percy's vision went red.

Afterward, he couldn't remember what had happened. All he knew was that he wasn't about to let this purple idiot take that stone.

He screamed and a wave exploded from the ground, coming from who knows where. Somehow he knew that even that wouldn't be enough. He chose to unleash a power that he'd sworn he'd never use again-the power that had released Typhon and blew up Mt. Saint Helens.

Percy drew on the sea inside of him. The full power of the ocean exploded out of Percy's body in a scream of fury. Thanos was blasted back over a hundred yards back into the battlefield. Rocks cracked and the ground rumbled.

Percy knew that if he didn't do something, the cliff would collapse, most likely killing all his friends. So, he used his remaining power to draw the ocean back inside of him. Trickles of water moved back to him, and the ground stopped shaking.

Percy swayed and collapsed on the ground. This time he didn't have Calypso to heal him.

The last thing that Percy saw before blacking out was Thanos jumping back to his feet and teleporting back to where he was before.

Nico saw Hazel slam into the rocks and crumple to the ground. Nico raised skeletons from the ground. He sent wave after wave of zombies, but each seemed to only make Thanos angrier and Nico weaker. Finally Thanos blasted the skeletons to dust and Nico collapsed, too tired to even move.

That left only Percy and Annabeth. Slowly, they both failed. Nico could only watch helplessly as Annabeth slammed into the rocks and Percy lapsed into unconsciousness after releasing the ocean within himself. Nico struggled but he couldn't move. He hadn't felt this tired since shadow-traveling the Athena Parthenos to Camp Half-Blood.

Thanos triumphantly made his way towards Vision. Wanda turned her head with tears in her eyes and saw that she was the only thing standing between the Mind Stone and Thanos. With her left hand she sent a stream of red energy towards Thanos and continued to destroy Vision's stone.

Since Wanda's power came from the Mind Stone, the one stone that Thanos didn't have, Thanos' blue and purple energy shield wasn't making much progress. Finally the stone exploded, and a shock wave rippled around the clearing.

Vision collapsed to the ground. Both Wanda and Thanos subsided. He walked closer to Wanda. "I understand, my child. More than anyone."

Wanda looked up at Thanos, rage and grief distorting her features. "You… could… never." She snarled at him. Thanos started stroking her hair, as if to comfort her.

"Today I lost more than you know. But now is not time to mourn…" He smiled. "Now is not time at all." He clenched the gauntlet and the Time Stone glowed.

He focused the stone on the place where Vision exploded. Shards of yellow gem were put back together, and Vision gasped, life returning to his eyes. Wanda's eyes widened as she realized what he was doing.

"NO!" She rose to her feet but Thanos blasted her aside like a rag doll and pried the Mind Stone from Vision's head. Vision fell to the ground once more and turned gray.

Nico knew what was about to happen. He struggled to rise and drew his Black Stygian Iron Sword. At least he would go down fighting. Thanos didn't even look over and slammed Nico into the rocks, trapped like Annabeth.

Bringing his gauntleted hand up, Thanos slowly put the Mind Stone into its place on the gauntlet.

The energy surge was huge. Iridescent colors of the stones surrounded him, and he bellowed. Thanos studied the completed gauntlet. The conscious Avengers could only watch helplessly. Then a massive bolt of lightning struck him.

Thor appeared, flying and holding his axe Stormbreaker high. He threw it towards Thanos, who put up a shield but the axe pushed it back and stabbed him in the chest.

Thor flew down and landed near Thanos, who was now on one knee. "I told you," Thor said. "You would die for that." He pushed the axe deeper into Thanos' chest and he yelled in pain.

"You… should have… You," He sounded suddenly stronger. "You should have aimed for the head." Thanos slowly raised his gauntlet and snapped his huge fingers.

When Nico opened his eyes again, the first thing he noticed was he wasn't trapped in the rocks anymore. Neither was Annabeth. Hazel got up and walked over. Percy remained unconscious. No wonder, the guy had spent all of his strength.

It seemed like anything that the gauntlet had caused to happen had suddenly reversed. But why?

Leo rose out of his hole and walked over as well, limping slightly. They all looked at the gauntlet, staring at it in horror.

It was ruined, the gold was flaking off and you could see the wires inside it. Thor looked at it. "What did you do? What did you do?"

Thanos teleported away.

Instantly, Nico collapsed to the ground, clutching his head. The ringing in his ears was worse than he'd ever felt. It was like someone was screaming in his ear while a fog horn blasted all around him.

He didn't even notice Steve Rogers walking into the clearing. "Thor, what's happened? Where'd he go?"

"Nico!" Hazel grabbed him. "What's wrong?"

"Something's… happening." He said.

"Hey guys…" Leo said, looking down at his hand. It was crumbling to ash. "I don't…" His entire body crumbled and dust fell to the grass where Leo was standing.

Hazel stared in shock.

"It's happened." Nico said grimly. "Thanos did it." He looked over at Annabeth who was staring at her own hand in shock. "This feels really weird." She muttered. Hazel let out a noise that was somewhere in between a laugh and a sob.

Annabeth's grey eyes were as sharp as ever. "Don't let Percy-"Then she was gone. Don't let Percy what?

Hazel had a sharp intake of breath and fell to the ground, feeling where Annabeth and Leo were standing.

The ringing in Nico's ears subsided a little, but that didn't change the fact that Leo and Annabeth were… dead.

Jason and the remaining members gathered themselves together. Piper grabbed Frank's hand and pulled him up. Mantis propped up Quill, Peter helped Tony to his feet. Drax and Nebula limped over on their own.

The silence was eerie. Then Mantis looked up. "Something… is… happening." She crumbled to ashes.

"What the-"Frank looked around in shock. Drax looked around at Quill. "Quill?" He crumbled to dust as well.

Quill stared in horror.

Tony stepped up. "Steady, Quill."

"Aw, man…" Quill disintegrated.

Doctor Strange calmly turned to Tony. "Tony, there was no other way." He was erased. Strange's words echoed in Jason's head. We're in the Endgame now.

Thanos had done it. People across the galaxy were dead. All Jason could hope for was that he and his friends would survive.

"Mr. Stark, I don't feel so good." Jason turned. He saw Peter staring at himself in terror. He looked like he was smoking around the edges.

Tony looked at Peter as well in horror. He tried to look calm, but his voice shook. "You're all right."

Peter stumbled over to him. "I don't know what's- I don't know what's happening." Peter fell into Tony's arms and started crying. "I don't wanna go, sir, please, I don't wanna go. Please, I don't wanna- I'm sorry." He crumbled to ashes.

Jason felt like he'd been struck in the chest. "He did it." Nebula said solemnly.

"Jason?" Jason heard Piper's voice behind him. He turned.

Piper's legs started to wobble as she disintegrated. "Jason, it's okay." Her voice was strong even as she turned to dust. "You'll find a way. I know you'll find-"

The last thing to go was her multicolored eyes, strong and hard as always. Jason still couldn't decide what color they were. Her bronze knife clattered to the ground, the only souvenir from the otherwise completely disintegrated body.

Jason, Frank, Tony, and Nebula stared at each other.

"Percy."

A voice said. It sounded choked with tears, like it could barely get the words out. "Percy." It said again, more insistently this time. Percy didn't want to wake up. He was so tired. It would be easier to let his body just give up.

Seaweed Brain. Another voice in the back of his head said, so soft that he couldn't tell if he'd imagined it or not. It sounded like Annabeth's. Annabeth-the battle, Thanos, Vision- his eyes snapped open.

He was lying exactly where he'd fallen. He sat up instantly despite the gasps and protest of his friends- no, friend. Hazel's voice, calling him. His eyes focused on her, along with the shocked faces of Nico and Steve.

Nico tried to give him ambrosia but Percy pushed them away, looking around for a familiar grey-eyed figure.

"Where's Annabeth?"

A/N Bwahahahahah. Remember, teaser trailer coming in a couple days! Please review, did I make it sad enough? I've never killed anyone before so... Shout out to reviewers:

ShadeFireDragon
NinjaFang1331
Br0kenTh0rn
DarkShadowDragon16
Gottalovebooks14 (Wellll...)
The Sorrowful Deity
DaughterofAthena223
Ronnie R15
dzeebest (Yay, I can adopt it! I was hoping you'd say yes. I will leave a review on that story when my version is released, which may be a while since I have a bunch of stories to catch up on)