Remnant's Revenant, a RWBY Crossover.
Summary: They say death is the end, but it is really another chance, and having the ruler of an entire dimension backing you doesn't hurt.
Chapter 1: Waking Up
A sharp pain through her heart. A burning feeling, an all-consuming fire, then nothingness.
"Wake up."
A pair of emerald eyes opened and blinked. Pyrrha looked around, and all she could see was green. Every possible shade of emerald swirled in a beautiful, soundless storm.
"You're awake. I was wondering how long it would take for you to get up." The voice spoke. Pyrrha spun around, and saw an unfamiliar figure. He was a young man, no older than his early twenties. He had a youthful face, with gleaming, toxic green eyes, which carried a hint of ice blue within their depths. A shock of messy, snow white hair sat atop his head, with pitch black sides trimmed short. Atop his forehead sat an ornate crown, white crystals with a glowing emerald in the middle. The man wore a black long-coat, with a wide white belt holding it closed around him. Underneath that was a black shirt with a white symbol, a stylized 'D' with a cutout to form a 'P'. Strapped to his belt was a katana, sheathed in a black scabbard with white designs along it. The last things she noticed were his unearthly glow, and the fact that he was not standing on anything.
"Who are you? Where am I?" The Huntress in training asked.
"Oh, where are my manners. Danny Phantom, King of the Ghost Zone, which is where you are now." Phantom answered.
"Ghost Zone? Does that mean…I'm dead?" Pyrrha asked, disbelief in her voice. She looked down at herself, and saw that her clothing had changed tones, the brown leather of her outfit now black. Her skin was now a deathly pale, and at the center of her chest, just above the top of her armor, was a glowing scar, blinding white where Cinder's arrow had pierced her heart. "I will say," Phantom got her attention. "You really gave her a run for her money. If it weren't for her stolen magic, she wouldn't have stood a chance against you. Of course, she never could have seen what was right behind her. For a little girl, she sure packs a punch."
"Ruby." Pyrrha's eyes widened. "What happened?" She demanded.
"Your death unlocked a power, ancient and unknown, in your friend. The battle was not going in your friend's favor, but one flash of light later, and now that dragon monster is a statue on what's left of the tower you were fighting on."
"How do you know this? Why are you doing this? And what do you want from me?" Pyrrha asked, shaking her head.
"Cinder's plan opened a temporary rift between your world and this world. I know every single realm that the Ghost Zone is connected to, and I couldn't help but be intrigued. As for why, before I was king of all ghosts, I was a hero like you, fighting monsters and villains to protect the innocent. And regarding what you have to do with all this, I think everyone deserves a second chance. I can't physically manifest in your world without a body native to it. You on the other hand, can exist on Remnant. Ozpin chose you to be the Fall Maiden, but now you have more power than even Cinder could hope to have." Pyrrha looked around, and saw that their surroundings had changed. They now floated in what appeared to be a clock tower. "Where are we?" The huntress-turned-ghost asked. "Clockwork's Tower, the Time Master's Observatory, capable of viewing and traveling to any time or place in the Infinite Realms. The old man's out on business, and even then, he can't really stop me."
One of the screens in the room lit up, depicting a scene of Ruby Rose, the crimson clad silver-eyed huntress, walking through snow-covered forest with the rest of team JNPR, an odd crow following them in the air. Pyrrha looked at her friends and teammates, and was horrified when a pack of Beowolves leapt from the trees and attacked, followed by Ursi and Griffons. The crow flew over a Griffon, and turned into Ruby's uncle Qrow, swinging his sword through the Grimm's neck and using the body to cushion his descent. The veteran huntsman quickly went to work protecting his charges, cutting many of the Grimm to ribbons. Pyrrha's hope spot was ended when a Beowolf Alpha managed to catch him in the side, drawing blood.
"Your friends won't survive this battle." Danny stated. "What?" Pyrrha turned to him. "Why show me this if you know they'll die!" She shouted. Danny strode up to her, and the power he was radiating was almost tangible. "I'm showing you, because you can save them. Your world has never encountered anything like the ghosts of the Ghost Zone. You have the advantage; you can make things right. All you have to do, is take my hand." Phantom held out a hand. "I'll be able to guide your ghost powers, so you won't have to deal with them going out of control." Pyrrha shook his hand, and a charge seemed to go through her. "You'll need these." Danny said, holding out Milo and Akouo, the former intact once again, despite Cinder melting it during their duel. Pyrrha took the weapons with a nod, and turned to the screen. "I'm ready."
"One more thing. Your name's not Pyrrha Nikos anymore, it's Pyrrha Revenant." Danny stated, as the image in the screen shimmered into a portal. "What does that affect?" She asked. "Nothing, that's just what myself and most other ghosts will call you." Pyrrha leaped into the portal, and the screen returned to being a window into another world.
"Will she be alright?" A voice said next to Danny. A new figure faded into view, clad in a white cloak with the hood up, obscuring her face. "Pyrrha, or Ruby?"
"I don't want Ruby to lose any more than she already has, and she's already lost too much. Her friend, her team, her mom…" She said, mournful.
"She'll be alright. Pyrrha can stop Cinder, and Salem won't be able to touch her, Summer." Phantom reassured the huntress ghost.
