Disclaimer: I totally and completely own everything to do with Harry Potter and Charmed. Yup, I sure do.

THE ABOVE STATEMENT IS A COMPLETE FABRICATION

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A/N: Okay, I actually can't remember how many times I've said the words 'last sequel', but this time it is one hundred percent true and I even have a binding legal document that won't allow me to continue past this one. I mean it.

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Chapter 1

Reunion Tour

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GRAND FORUM, ATLANTIS. DECEMBER 19th, 2016

Clack, clack, clack, clack, clack, clack, clack. The sound repeated over and over again as Miley and Danielle's high heeled shoes clattered down one of the many corridors in the Grand Forum. The two girls raced toward the central meeting chamber of the Atlantean Ministry of Magic. A meeting was currently in session, so both young women knew that anyone who needed to learn of their news would be there.

It had been more than two years since Harry had been brought back to the good side and Catherine had returned to her time. Since then, the world had been in a state of relative peace. Both Hogwarts and Magic School had been rebuilt and were operating under the watchful eyes of the Atlantean Ministry, and under the protective wings of Aurora, or as her friends preferred to call her - Hermione. It was because of these things that Miley and Danielle's news was completely unexpected.

The identical twin sisters burst through the solid gold doors into the Ministry meeting chambers. The group of two dozen men and women looked up at them. Hermione, who sat at the head of the long, oak table, stood up. Her flowing white gown billowed around her, and she pushed her elbow length chestnut hair out of her cinnamon eyes, dark brown with a splash of gold.

"Miley," she said, her dark eyes narrowing slightly. "Danielle, why are you bursting in like this?"

"Mum," Miley said, approaching the table with her sister, her eyes taking in the curious expressions of the other Ministry members. "We were up in the Control Room when the news came down."

"What news?" Harry asked from his seat on Hermione's right side.

"We could hardly believe it ourselves when we heard, what with everything having been so quiet over the past two years, but it's true… it's happening everywhere."

"What's going on?" Harry pressed.

"We don't really know." Danielle said. "We started detecting massive waves of dark energy all over the globe."

"And what's causing it?" Harry wanted to know.

"Grindelwald's Dark Energy Towers." Miley said at once. "Since Mum put us in charge of the Control Room we've been studying any threats to the island, particularly the Dark Energy Towers. Our teams found dozens of the things that Grindelwald didn't activate back during the Second War. We thought they were inert… harmless. We were wrong. Thirty four of them just came online, and they're unleashing waves of destruction over every continent."

Hermione must have gotten all the information that she needed, because she acted immediately.

"Miley, get back to the Control Room and raise the shield. Lockdown the island as well, I don't want anyone getting in or out." She turned to Danielle.

"Danielle, contact the other ministries. I want casualty and damage reports immediately, then inform the ministers to fall back to Atlantis. Whatever's happening out there, we're going to need to unite together and Atlantis is the safest place to do that." Danielle was out the door immediately, quickly following in her twin sister's footsteps. Hermione then turned to Harry.

"Harry…" she said softly. "Your task is going to be the most dangerous."

"You know I'm ready." Harry told her, gently taking her hand.

"Harry, I need you to go to Hogwarts and Magic School. Deploy the shield potions we used during the war. The protection of those schools is our primary concern." Harry nodded and stood.

"I'll get it done, Mione."

"I know you will, Harry. Please, be careful."

"I will." Harry said, and he was off. As Harry scurried from the room, Hermione's eyes fell upon the other dozen ministry members in the room.

"As for the rest of you, return to your homes." Hermione said. "Take care of your families, but I'll want all of you back in six hours for an emergency briefing on everything we've learned from now until then."

Miley raced back into the room a moment later, a sheaf of parchment clutched in her hands.

"It's from the English Ministry of Magic… from Arthur." Miley said in a monotonous tone, passing Hermione the letter with trembling hands. Hermione took the letter and read it quickly, her expression growing darker the farther she read.

"Is he serious?" Hermione said, more to herself than to Miley.

"Yeah," Miley said. "He's serious."

"My god…" Hermione whispered. "He's launching a full scale assault on the German Ministry of Magic… that doesn't even…"

"That's not all, Mum." Miley said uncertainly. "We got this, too…" She handed over a second sheet of paper and Hermione's jaw dropped.

"Where did this come from?" she demanded.

"The United States muggle government."

"Obviously, from who?"

"Their President, naturally." Miley informed her. "There are only a half dozen people in their government who know about magic."

"Grindelwald's towers, the magical world turning on itself…" Hermione brandished the letter. "Half the world's nations launching every nuclear weapon they possess… What the hell's going on out there?"

"I might be able to tell you." A familiar voice said from the doorway. Hermione and Miley spun around.

"I hate to say it," Hermione said with a roll of her eyes. "but I saw this part coming."

"It's becoming a bit of a pattern in our lives, isn't it?" Miley agreed.

"Is it my fault the only way to keep the world intact is to go back in time and fix something you all have fucked up?" Catherine asked, stepping into the room properly, her arms folded across her chest.

"Kat, what's all this about?" Hermione asked.

"It's about you, Mum." Catherine said. "Of course, everything these days seems to be about you."

"Who's responsible for all of this?" Miley pressed. Catherine smiled.

"Why, my dear sister… who do you think?" Hermione shook her head.

"That's impossible." she said firmly. "He's dead, Kat."

"We never found a body after that explosion at Hogwarts. Maybe he died, maybe he didn't. Even if he was dead, so was I… so were you, Harry, and many others that have come back from the world beyond this one. He's back, though, and he's determined to test you one last time."

"And how do you know that?" Miley wanted to know.

"I'm from the future, sweetheart." Catherine said. "In these situations, just assume that I'm smarter than you are."

"Still a smartass, I see…" Miley muttered.

"I'm guessing you've got a plan to fix all this, then?" Hermione asked.

"Not so much a plan as a vague concept, Mum." Catherine tossed Hermione an old, dirty, folded up piece of paper. Hermione opened it and stared at it for a second before shaking her head.

"Not a chance, Kat." Hermione said. "I'm not going back, honey… I can't."

"You're not going back." Catherine said smugly. "We all are."

"All…" Hermione began, but broke off when Catherine motioned toward the door. Through the golden doorway walked Elizabeth and Hope.

"We were at our strongest when we were all together, Mum." Catherine said. "So, I'm putting our family back together… just like we were in the Second War."

"How far?" Miley asked, her eyes narrowing.

"To where all this began… back to when Harry and Hermione found each other again. We'll do this just like last time. We'll send everyone here back to that point, then we'll use that spell that gives people back their future memories… the one you found in the Book last time, Mum."

"And then what?" Hermione asked. "Fight the war all over again?"

"No," Catherine said. "this time we'll have the upper hand. No one but us will know the truth about where we come from. We can strike when and where we want."

"Miley," Hermione said, her eyes locked with Catherine's. "Round up everyone we need. Get them back here, now." In a flash, Miley was gone.

"So," Hermione said, sinking back into her chair and looking up at Catherine, an expression of polite curiosity on her face. "are you going to tell me what's really going on?" Catherine let out a small laugh.

"What do you mean?"

"I mean, do you honestly think I believed one single word you just said to me and Miley? I'm not stupid, Kat. Dumbledore's dead, we both know that. Now, I don't know if you've done something in the future and need our help in the past to fix it, or perhaps you've managed to kill someone and have to go back that far in order to save them. I don't know exactly what you've come here for, but I do know that you haven't told me the truth."

"Mum, I've been completely honest with you. Dumbledore's back, I've seen him. He nearly destroyed everything in my time just to get to you."

"Then why now?" Hermione wanted to know. "What's his plan, and why would he activate Grindelwald's towers and start a war between the British and German ministries of magic? How does that get him access to me?" Catherine shrugged.

"Mum, I don't know… but then, I'm not Dumbledore."

"No," Hermione said, more to herself than to Catherine. "No, you're not." The doors opened again and Miley led Harry, Danielle, and to Hermione's surprise, Draco, back into the room.

"Heard what was going on, figured I'd lend a hand." Draco said, giving Hermione a quick hug. "It's good to see you again."

"What's going on?" Harry asked Hermione. "What're they doing here?"

"Saving your ass." Catherine said.

"Kat claims Dumbledore's back." Hermione explained. "According to her, he's the one responsible for all this."

"But he's…" Harry began.

"Dead, I know." Hermione interrupted him. "Maybe he's not. Look, I've learned to trust Catherine, and…" Hermione's eyes locked with Catherine's for the briefest of seconds. "She wouldn't lie to me."

"Okay, so what's the plan, then?" Harry asked.

"We go back in time again," Hermione said. "Wrap this whole mess up for good."

"Do you have any idea what we're risking?" Harry asked, staring at Hermione as though she were insane.

"I do," she said, her eyes settling only for a moment on Miley. "but I also know what we're erasing." She turned back to Harry. "A lot of terrible things have taken place. If we go back again, maybe… just maybe we can put things right at last." Danielle shrugged and took the paper Catherine had given Hermione with the time-travel spell written on it.

"What the hell," she said, casting a glance at everyone in the room. "What've we got to lose, right?"

"Just our lives." Draco muttered.

"So, we're agreed, then?" Catherine asked. "We go?" Catherine looked around the room. Slowly, everyone nodded.

"Okay, then." Danielle said, handing the spell back to Hermione. "Care to do the honors?"

"One minute!" Miley exclaimed, rushing toward the golden doors and whispering to someone on the other side.

"Mum," Miley said. "you told me to go and get everyone we'd need for this quest. Well, I've got one other person who might be able to help us." She pushed open the door and Phoebe Halliwell stepped into the room.

"Hey, Mi." she said softly, a small smile on her lips.

"Phoebe…" Hermione said, momentarily stunned. "I didn't think…"

"What? That I'd come back? I heard what was going on, and when Miley showed up on my doorstep, well… I just figured I'd take this journey with you." Hermione pulled Phoebe into a tight hug, barely able to believe that she had truly returned.

"You have no idea how much I've missed you." Hermione whispered.

"I do." Phoebe said equally as quiet. "Because that's how much I've missed you."

"Not to shatter this little reunion, because I'm sure you're both rather emotional at the moment, but we need to go." Catherine told them.

"Right." Hermione said, releasing Phoebe. Phoebe, however, gripped Hermione's hand tightly.

"It looks like I'm going to have quite the tale to tell my sisters."

"You know they're both going to think you've gone crazy until someone casts the memory spell, right?"

"Yeah, probably. Listen, I've been thinking. It might be better this time around if my sisters and I don't give up our powers. If we do, you'll have to worry about protecting us. As long as we're the Charmed Ones, we can take care of ourselves."

"That wouldn't be a bad idea, actually." Hermione said. "Let you and your sisters keep your Charmed powers instead of passing them on to us. Well, whatever happens we'll try to get everyone back to the manor as fast as we can, before Dumbledore catches onto us." Harry shouted from across the room.

"You girls ready?" he asked. Hermione and Phoebe exchanged glances. Phoebe gave Hermione wink and Hermione nodded.

"Let's go."