I do not own Kingdom Hearts or any of the characters. This story will have a couple long chapters rather than a lot of short ones(the first being the exception). It will also be mostly over the keyblade wielders that formed the X-blade.

Twelve on Seven

Ventus stepped out of the Dark Corridor first and saw the door wide open with combatants all around them as well as inside the door. He could see all thirteen of the Xehanort Incarnations floating in the air at the far end of the battlefield and that they would have to go through thousands or more keyblade wielders to get there.

The other six of their official team stepped out after them followed by their army. The army charged instantly trying to clear a path to the Organization. They had decided that they would have no choice but to kill and that anyone there had all but given in to the darkness anyway. What they didn't plan on was the Heartless, Nobodies, and Unversed that were also fighting the keyblade wielders. Their army made a path quickly which Ventus and his group made their way through and through the door and their army charged after them then into the next set of armies which were much stronger and more heavily threaded with the other enemies.

After a moment Ventus and his group charged into the fray as well slashing and hacking their way toward the Organization. When they neared them, they jumped over the last few and landed before their opponents. The Organization members all floated down to the ground and stood in a line summoning their keyblades and holding them end to end. Most wielded the same keyblade as Master Xehanort had before but many didn't. Young Xehanort wielded his personal keyblade that he used to travel through time, Master Xehanort himself wielded the X-blade, Xigbar wielded a keyblade that looked like the hilt of on of his Nobody form's Arowguns had been removed then attached to the side of the pointed barrel which was now a blade, Saix's keyblade had the same look as his old weapon but with part of the tip as a finger guard, the thirteenth member wielded the same keyblade he had at Castle Oblivian, Vanitas wielded his Void gear, and Ansem had Soul Eater.

Ventus looked at his friends and they all nodded then pulled the charms off of their keyblades. Then they all pulled out something else and attached it to the chains. All of their keyblades became Ultima Weapons and Ventus stepped forward alone and the thirteenth, who had yet been airborne, floated down in front of him.

"You will lose," the member said.

"We'll see," Ventus said. "Who are you?"

The member smiled and disappeared into a Dark Corridor and Ventus and the others charged at the others. The Organization separated as if they knew how Ventus and the others had agreed upon and were happy to help out. Ventus slid under Vanitas's keyblade then spun past the other Ventus's and slashed Roxas's keyblade aside. Then he spun the other way and slashed the other him across the chest and kicked Vanitas's in the face. Roxas caught his arms and he flipped backward throwing Roxas's into Vanitas. Just as the other Ventus began to charge forward, the Organization's Aqua flew into him just before both Aqua and Ventus blasted them with a Firaja and vaporized them. Then Ventus caught Roxas's arm and used Roxas's keyblade to block Vanitas's before throwing Roxas into Vanitas and looking sideways at Aqua who was having a bit of difficulty fighting both Terra and Xion.

"Is this what you want Roxas?" Ventus asked ducking under a slash from Roxas and blocking one from Vanitas. "To be a tool used only to destroy the world?"

Roxas stopped for a moment then spun and swung at Aqua who had stumbled toward him and away from Xion. Aqua blocked the swing and Ventus blocked one from Xion. Then Ventus kicked Xion away and spun swinging at Vanitas while Aqua kicked Roxas away and launched a Fira at Terra. Vanitas and Teraa both dodged the attacks while Roxas and Xion both charged at Ventus.

"ROXAS!" Lea shouted. "SICE WHEN DO YOU ENJOY HURTING PEOPLE!? SNAP OUT OF IT MAN!"

Roxas froze mid-swing while Xion continued. Ventus blocked her swing and she instantly jumped over him and swung at Aqua. Before er keyblade hit, Roxas blocked her attack as the fragment of Master Xehanort's heart inside him shot out of his chest and at Master Xehanort. Before it hit, it suddenly stopped and formed a perfect ninety degree angle into the thirteenth member's chest. Master Xehanort chose to ignore it as he was seconds away from defeating Mickey. just as he sent a single massive blast at Mickey to destroy him, the X-blade suddenly deteriorated to its incomplete form and the blast merely sent mickey flying into a large stone.

Master Xehanort looked around. Roxas and Xion were struggling to overpower each other, as were Ventus and Vanitas, and Aqua and Terra. Kairi was out cold and barely alive with Young Xehanort and Xemnas both fighting against Sora who was in his Valor form fighting desperately with two Ultima Weapons. Riku had defeated Ansem and was moving to aid Lea who was now fighting Saix while Xigbar moved to intercept Riku.

Ventus leapt over a horizontal swing from Vanitas then leapt backward as the pale white Vanitas crashed down where he had been.

"Not you again," Ventus said activating his armor for the first time that war. "Aqua! The other one's here!"

Aqua glanced over then jumped away from Terra and activated her armor before returning to battling Terra. Ventus launched a blast of light at the normal Vanitas then charged at the other. It avoided his first swing then moved to spin past him but Ventus planted the foot he was on and leaned forward catching himself on his hands while bringing his back foot p into that Vanitas's face. then he flipped back to his feet and spun blocking the other Vanitas's keyblade.

"You're weak," Ventus said.

"Then let's change that," Vanitas said as the second one turned into a column of white energy and shot into the original Vanitas whose helmet closed around his face and the symbol for Unversed appeared on the face. Then, he blurred at Ventus attacking him. Ventus jumped backward from the attack that he knew was coming but Vanitas still managed to slice his thigh. It was little more than a paper cut but it drew blood which was exactly what Vanitas was after. Vanitas cut his hand with the same spot on his Void Gear that had Ventus's blood then grinned.

"Game over," Vanitas said as his Void Gear glowed then transformed into the X-blade.

"Aqua!" Ventus said backing away from Vanitas.

Aqua blocked a slash from Terra then jumped to Ventus's side.

"Snap out of it Xion!" Roxas said catching Xion's arms. "Come on! Please don't make me kill you again!'

Xion stopped struggling slowly and blinked looking dazed. then, her fragment of Xehanort's heart flew out of her as well acting the same way as Roxas's had, as though the thirteenth member had stolen it. After a moment Xion came out of her daze and she and Roxas rushed over to Ventus and Aqua. Just as they arrive, Master Xehanort floated down beside Vanitas. his X-blade was now completely rust covered with cracks running across it everywhere and pieces missing every now and then.

"What...have you done?" Master Xehanort asked.

"Recruited two of your members and destroyed two more," Ventus said. "You're welcome."

Master Xehanort darted forward but Roxas and Xion moved in front of him and the three began to fight.

"Shall we?" Vanitas asked.

Ventus sprinted forward and jumped over Vanitas's first swing then landed behind him and swung at him while Aqua did the same from the other side. Vanitas blocked Ventus's keyblade and caught Aqua's bare handed. He shoved Ventus away and tightened his grip on Aqua's before spinning and yanking Aqua's keyblade away then stabbing her with his X-blade. Ventus instantly stood and summoned Aqua's keyblade then charged at Vanitas. Vanitus pulled his X-blade out of Aqua and turned to fight Ventus. Ventus began attacking Vanitas in a near blur and within a minute, Vanitas suddenly had both keyblades extending from his chest. Ventus pulled both out and Vanitas collapsed. The fragment of Xehanort's heart rose out of him and promptly flew into the thirteenth incarnation. Just as it reached him, Xemnas and Xigbar's both joined it and those from all of thhose who had already fallen joined them as well.

Lea and Saix were still fighting but Riku was moving to aid Lea, Sora was struggling against Young Xehanort, and Terra was standing over Aqua with his keyblade raised over his head. Ventus launched himself forward just as Terra's keyblade began to descend. Ventus managed to slip Aqua.s keyblade under Terra's so that the flat of the blade was facing Aqua. Terra's blade stopped against Aqua's just before Ventus used his own keyblade to smash Terra's away. It spun through the air and Just as Terra summoned it back, Ventus began battering Terra from all sides with both his and Aqua's keyblades. Finally, the smashed Terra skyward then leapt over him flipping over and sent him flying at Master Xehanort. Then, Ventus sent a Curaga at Aqua before he had even finished landing. The spell healed Aqua and kept her alive but it failed to wake her up.

Ventus looked around just as Riku and Lea tag-team-slashed Saix and bisected him sending his fragment of Xehanort's heart to the thirteenth member and Young Xehanort blasted Sora backward into the same rock that King Mickey was unconscious by. Riku and Lea sprinted at Young Xehanort and Roxas and Xion separated to fight Master Xehanort and Terra separately. Ventus moved to take on Terra in Roxas's place and Roxas moved to help Xion. Terra blocked a swipe from Ventus just as a second smashed into his shoulder and sent him sailing into Master Xehanort. Master Xehanort finally snapped gripping Terra by the neck and smashing Roxas and Xion away with the flat of his X-blade before driving his hand into Terra's chest and pulling out the heart fragment. It instantly shot out of his hand and into the waiting hand of the thirteenth joining the other eleven stolen fragments.

"One fragment left," the thirteenth said.

"You dare to challenge me?" Master Xehanort asked. "You hold twelve of thirteen pieces of MY heart! I OWN you!"

Master Xehanort held out his hand and the thirteenth radiated darkness for a moment before it faded and he dusted off his shoulder dramatically.

"I think not," the thirteenth said walking forward and picking up Vanitas's X-blade that had not faded when Ventus had ended his battle with his rival. "Seconds left huh Vanitas? You don't mind do you?"

The thirteenth swung the X-blade and a single energy blast flew out for everyone that was still standing, including Master Xehanort and Terra. Every blast hit except Ventus's. Ventus blocked the blast aimed a him and sent it back at the thirteenth who disappeared just before the blast exploded on the ground in front of him.

Ventus looked around. Most of them were getting up again, except Kairi and Terra. Even Aqua was struggling to her feet. Master Xehanort pushed himself up and Ventus took the initiative and stabbed him from behind before he was all the way up. His remaining fragment flew to the thirteenth who was floating down from the air, his hood having finally fallen away in his haste to avoid the blast. Sora and Riku stared in shock and Ventus assumed they knew him.

"Hello again Sora, Riku," the thirteenth said.

"Tidus!?" Sora and Riku said together.