Chapter 6

Mari grabbed the dark haired boy and pulled him behind her. "I've only known about the wizarding world for a few days and I've already had enough of you," she shouted at the dark figure. "People that won't speak your name, leaving their homes to get away from you, you're nothing but a tyrant."

Ginny watched the dark haired woman that was with her mother, wondering who she was and why she would willingly put herself in front of Harry. Harry stepped out from behind her, "Sorry, but I'm the one that has to kill him," he said. A jet of green light shot toward the group. Mari saw it as if it was in slow motion, heading for this group of children that Molly loved. She threw her hand up and shouted, "No! I will not allow you to harm any of Molly's children."

The jet of green disappeared in a puff of smoke, and the gleeful laughing from the monster that had sent the spell stopped. "Who are you?" it asked.

Harry began quietly chanting, his wand touching the tips of the other three. Mari took a step toward the red eyed beast, "I am Marietta Grant and you killed my mother."

She could feel the magic building behind her, and knew that she should give them a few more seconds to do whatever it was that they were doing. She reached into her robe and pulled out one of the Decoy Detonators that George had given her. She took a step back and spoke quietly to the four teens behind her. "I'm going to use one of Fred and George's Decoy Detonators, be ready to run."

Harry looked up at her then turned to Ron. Ron looked over at Voldemort, then to Mari. "We've been working on this spell for over a year, Hermione created it, and we're sure that it's going to work. Let us finish this now, and then the Wizarding World will be free of him."

Ginny smiled at the woman, "My mum would be proud of you for trying to get us out of here. Maybe when we're done here, you could introduce yourself."

Harry finished chanting and turned toward Voldemort, "Your reign of terror is over Tom," he shouted. The four pointed their wands at Voldemort and shouted as one, "extermino venefictium!"

An unearthly scream filled the train car, and when the sound finally disappeared, Harry walked toward the huddled form at the end of the corridor. "You will never terrorize the Wizarding World again," he said.

"What have you done to me, child?" he asked.

Harry laughed and shot ropes from the end of his wand. "We removed your magic," he explained. "You are nothing more than a Muggle now." The door to the train car flew open and Molly charged through. She looked at each of them, and dropped to her knees in tears.

"You're all okay," she sobbed. Bill and Charlie came in behind their father, looking over the group standing at the other end of the hall.

"Mari," Charlie shouted. He walked to her quickly. "Why didn't you stay at the burrow?" he asked. "I know my mum and she wouldn't have let you come if you hadn't given her good reason."

Mari smiled and threw her arms around him. "I am so glad that you're alright."

Charlie pulled back from her hug, "I'm fine, you were the one in danger."

Ginny cleared her throat, "That's sweet and all, but you should have seen her make the killing curse disappear."

Charlie looked at his sister, and then at the rest of the group. Harry stepped up next to Charlie. "She threw up her hand and yelled no, and it just disappeared in a puff of smoke." He looked at her, "I'm Harry Potter, who are you?"

Mari laughed and extended her hand, "Marietta Grant, it's nice to finally meet you Harry. The Weasleys that have been at the burrow in the past few days speak highly of you."

"The whole Wizarding World will be speaking highly of all of you," Molly said. Arthur helped her up and led her to where her children were waiting. "I knew that the four of you would be at the center of the final battle, I'm just happy that you're all alright."

"Not a scratch on us mum," Ron told her. "Hermione had the spell all worked out, all we had to do was cast it."

"I never expected it to be that easy," Hermione said. She turned to Mari, "Thank you, if you hadn't stopped that curse, one of us would be dead."

Molly hugged each of them, "Let's find an auror, turn him over to them and go home."

The group arrived at the burrow, with an auror escort. Tonks and Kingsley Shacklebolt searched the house before allowing them to go in. Molly headed straight for the kitchen, to put her feast on the table.

"When mum told me that you touched Ginny and disappeared, I didn't know what to think. I searched most of the train before we heard that horrible scream." Charlie told her. He sat down on the nearest chair and pulled her into his lap. "I wanted you to be okay. I wanted to find you and Ginny locked in some compartment, not able to get out. That way you both would have been safe."

Mari looked into his eyes, "I only wanted to comfort her, but when I touched her we ended up in the compartment behind Harry, Ron and Hermione." She put her head on his shoulder, "I never expected to be right there when he rid the world of him. I thought that maybe I would be in some compartment taking care of minor injuries."

Ginny watched her brother and Mari for a few minutes then went into the kitchen to talk to her mother. "Mum," she said. "Who is Mari?"

Molly smiled at her daughter. "Mari is the daughter of a friend I lost to Voldemort in the first war. When she was killed, I offered to take care of Mari, but she was sent to live with her Muggle aunt. She came to England searching for Dumbledore, and Charlie ran into her, knocked her down actually. He brought her here, and I called Albus."

"No mum," she said. "I mean who is she to Charlie? They're in the other room, and she's sitting on his lap."

Molly sat the bowl she was holding on the table. "That's a long story, but the end result is that her mother promised her to Charlie when they were three. So eventually, she might be your sister-in-law."