DISCLAIMER: I do not own Harry Potter or Devil May Cry.
Harry, Ron, Hermione, Neville, Luna, Ginny and Dante stepped out of the fireplace at the Ministry, heading to the door of the Department of Mysteries. They entered a large room full of glowing blue orbs on shelves, where Harry searched for the row where he would find Sirius. Finally, he found the row, and the place he had seen in the vision, but Sirius was not there.
"He should be here."
Neville called Harry over to an orb that had his name on it. Harry picked it up, looking into the surface. Suddenly, Hermione called out to him, and he turned to see a man approaching, who wore dark robes and a black metal mask.
"Where's Sirius?" Demanded Harry.
The unmistakable voice of Lucius Malfoy answered, "You should learn to tell the difference between dreams and reality. You only saw what the dark lord wanted you to see."
Lucius then removed his mask, smirking at them.
Lucius then held out his hand. "Now give me that prophecy."
Harry realised that Lucius was here to retrieve the prophecy, not to kill him.
"You do anything to us, and I'll break it."
An insane laugh echoed from behind Lucius, filling the room.
"He knows how to play! Itty bitty baby Potter!"
A dark haired woman wearing a most immodest corset walked up beside Lucius, a crooked wand in her hand.
"Bellatrix Lestrange?" Cried Neville, moving forward.
"Neville Longbottom, is it? How's mum and dad?" Answered Bellatrix, looking sadistic.
Neville ground his teeth. "Better now they're about to be avenged." He began to raise his wand, but Harry stopped him, gripping his arm.
Lucius moved forward. "All we want is that prophecy. Just give it to me, and we won't hurt you."
A deep voice suddenly said, "You speak as if you were the strongest one in the room."
In a flash, Dante appeared beside Lucius and Bellatrix, punching both of them with adequate force to send them both flying across the room, so far that Harry lost sight of them.
Harry and the others then ran out of the prophecy chamber, easily fighting off the other Death Eaters that tried to stop them. They ran through the entire Department, before finally reaching a room with a large empty archway in it. Bellatrix and Lucius appeared close behind them, still accompanied by several Death Eaters.
Just as the Death Eaters were about to attack, there was a flash of light, and Sirius Black stood beside Harry.
"You people keep your fucking hands off my godson."
In the next few seconds, there were more flashes of light, and the other members of the Order appeared, along with Dumbledore. The Death Eaters began attacking, but the Order, the students and the Devil Hunter were more than a match for them. Lucius was rapidly overwhelmed by Dumbledore, but Bellatrix overwhelmed Kingsley Shacklebolt, Remus Lupin, Nymphadora Tonks, and then turned her attention to Sirius.
Bellatrix started to force Sirius back. Harry was fighting two Death Eaters at once, and couldn't intervene. Dumbledore was fighting a large group of them, while Madeye fought the rest. Just as Sirius started to stumble and waver, someone blocked the stunning curse that would have otherwise sent Sirius Black through the veil. Sirius turned to see Dante standing beside him.
Dante shoved Sirius to one side, preparing to fight Bellatrix himself. Bellatrix fired a killing curse at Dante, but Dante struck it with the sword, obliterating it. Bellatrix fired multiple killing curses, before apparating behind Dante and firing more. Despite her efforts, Bellatrix was unable to hit Dante or even come close. Finally deciding to end it, Dante dodged a killing curse that was sent his way, before flinging his sword point first into Bellatrix's chest.
Bellatrix stood, impaled. Somehow, the crazy woman was still alive, despite the massive hole in her chest. She glared at Dante. "How can you do this? You could serve the dark lord, and use that power properly, and keep the weak where they belong! I still wanted to kill all those filthy traitors and mud-bloods!"
Dante shook his head in distaste at Bellatrix's sadistic attitude, then smirked. He then gestured towards himself, yelling "Come on!"
His sword then flew back into his hand, with Bellatrix still hanging from the end of it. He then caused red energy to arc across the blade, and released it in a shockwave of some sort, launching Bellatrix backwards into the stone wall, watching as she literally shattered on impact.
"And that's how ya do it."
Every other Death Eater had been subdued, and the Order had suffered no casualties, only minor injuries inflicted mostly by Bellatrix. Everyone jumped when there was a burst of shadow, and the dark lord, Lord Voldemort himself stood before them.
Voldemort raised his wand to attack Harry, but Dumbledore stood in the way, ready to defend. Just as Dumbledore and Voldemort were about to attack each other, Dante stepped in front of Dumbledore, looking smug.
"Not bad, people, but you should leave this ugly bastard to the demon."
Voldemort glared at Dante, unable to believe that this man who looked to be a mere muggle was so arrogant as to openly insult him.
"I am Lord Voldemort. The greatest sorcerer in the world. You are a fool to challenge me."
Dante smirked. "So, you gonna fight or what?"