Pairing: AndromedaBellatrix (platonic)

Prompt: 636. Spy's Revenge

Word count: 495

Spy's Revenge

"Yes, I've seen the error of my ways." Andromeda Tonks bowed her head so as not to look her sister in the eye.

"You understand now that the Dark Lord's ways are the right ways? That Muggles are filth? And that you are forgiven because your no-good husband manipulated you?"

Andromeda nodded without saying a word.

"Look at me, sister."

Andromeda hesitated.

"Look at me!" Bellatrix's voice was higher now.

Slowly, if not reluctantly, Andromeda obliged, greeted by a wide grin from a sister who had renounced any relation long ago.

"Welcome back, Andromeda," Bellatrix said with delight.

…

She stood beside her daughter and husband, waiting for the Death Eaters to arrive.

Three months she had spent with them, learning everything there was to know. Three months she had gone with very little contact with her true family. Severus had helped her to master Occlumency; Voldemort didn't suspect a thing.

Now they waited for the fight, an attempt to wipe out as many Death Eaters as they could. They needed to weaken him.

They came as Andromeda had been told. In groups of three, five minutes apart.

Dumbledore's Army fought, while she watched.

Everything went as planned. Five Death Eaters died that night.

…

"How'd they know?" Bellatrix cried, storming into Andromeda's room where she thought her sister had been all along.

"How did who know what?" Andromeda asked, innocently.

"They knew we were coming, and they were waiting."

Bowing her head and keeping her voice low, Andromeda said in barely a whisper, "I told you; Dumbledore has eyes everywhere."

…

"No!" Andromeda shouted, pushing past those who tried to stop her. "No, you can't."

"I must," Ted said simply. "It's for the best."

"You can't leave."

"I must."

Tears ran down her cheeks as he kissed her forehead. "I'll see you when this is all over," he said.

She never did.

…

She faced her sister with fury in her eyes. It was all her fault. Her husband was dead because of her.

"Andi?" Bellatrix asked, sounding frightened.

Andromeda drew her wand.

"You killed him!" she hissed.

"I've killed many, Andi…."

"My husband!"

This shocked Bellatrix. "Your good-for-nothing Mudblood husband is dead?"

Andromeda fired the first curse, and soon the two women (so alike in looks, yet so different everywhere else) were locked in a battle.

"I fooled you for months," Andromeda said. "I spilled your secrets because you were foolish enough to trust me. But I can't do it anymore, sister. I'm done."

Bellatrix fired another curse.

Andromeda returned it.

Green flew from Bellatrix's wand.

"You dare kill me?"

"You dare trick me?"

"To protect those I love, I'd do anything." With one final flick of her wand, green sparks flew from the end of Andromeda's.

Bellatrix was not expecting the attack. Walking over to her motionless sister, Andromeda said her final words as she looked into the empty eyes.

"I've seen the error of my ways."

She left without looking back.

This chapter is dedicated to erm31323 (Lisa) for winning a competition of mine.

I'm accepting pairing/character/other forms of relationship requests via PM, so if you would like me to write a certain pairing, please PM me.