Totally just hitting the AUs here.

Official warning: Dark themes, murder, sexual shit, swearing

Also, new warning: there is a mention of self harm in one part and slight mutilation near the end of this chapter

...

"Maybe start from the beginning. Last time any of us saw you, you were leaving an Order meeting." Harry said. "So-''

"What happened with Teddy?" Tonks asked. "Please, just tell me, what happened?"

"A cloaked Death Eater simply handed him over to a Healer at St Mungo's a month after the battle and after his disappearance, it took another month for anyone to figure out who he was." Harry said. "They contacted me first, because according to the Ministry, Teddy's entire family had been killed."

"And?"

"He was fine, not a single injury. They don't know why the Death Eaters simply left him with a Healer, but we're grateful. Like I said, Molly took him for the first year until I was done Auror training, and then I took him."

"Auror training takes three years, I thought?"

"The class of trainees right after the battle were given a condensed, quicker version." Harry explained. "Half of us also didn't have to take our NEWTs, anyone meant to complete Hogwarts in 1998 were given personal letters from the Minister himself to get into the careers they chose."

"And Teddy- is he-"

"He's healthy, a very smart kid." Harry said. "Tonks, I'm willing to work with you. We can arrange for you to see Teddy-"

"Arrange? Arrange?" She demanded. "He's my son, Harry!"

"He's my godson." Harry replied. "And as his godfather, I should protect him. And unless you prove to me that you're not a Death Eater, that'll mean I'm protecting him from you too."

She didn't say anything.

"So, where did you go?" Harry asked, leaning forward.

May 13th, 1998

Today, her son would have been exactly a month old. And she and Remus would be exactly two months from celebrating their first wedding anniversary. But instead, her husband had been buried ten days ago, and her mother had been buried nine days ago, and her son was no where to be found.

She had slipped from the Order meeting, completely aware that at least three pairs of eyes watched her leave. She went home, a thought slowly becoming a plan, and a plan becoming a goal.

She looked around the home, grabbing only a few items and a little bit of the money her parents kept hidden, and the wand Andromeda had used in school but replaced as soon she had married Ted- because she didn't want to use the wand her parents had bought her, and Tonks was grateful now, because she would need another wand. She walked into the kitchen, waving her wand and destroying the furniture, table, cabinets, everything. She picked up her father's pocket knife when it flew from the drawer it had been in and landed at her feet. She opened the knife, dragging it across the palm of her hand. She smeared a hand print on one of the cabinet doors, and the top of one counter, squeezing her hand and allowing more blood to drip on the floor itself. She waved her wand, healing the cut.

Finally, she cast a few dueling spells, allowing them to hit walls and leave their marks. She used the Killing Curse once, destroying a large chunk of one wall. She cast a few more spells to cover the trace of the Killing Curse- she knew if they searched her wand, they'd only see the last one she used, which she made sure was Stupefy.

And then, holding each end of her wand, she brought the wand down on her knee and snapped it clean in half. She grabbed the bag she had packed, and walked out into the garden. Using her mother's old wand, she disappeared with a loud crack.

This had all started because of a simple sentence Kingsley had spoken.

"Dolohov was spotted in Nantes, Paris. The Ministry has sent Aurors to investigate, but by the time we got there, he was gone. The French Ministry has denied any reports being filed with them about him being there."

Dolohov had killed Remus, and fled the battle before he could be arrested. And somehow, when Kingsley said that Dolohov had slipped through the Ministry's hands again, she began to put the plan together. Dolohov might have answers, Dolohov wasn't at the battle when it ended- and if he wasn't at the battle, maybe he was among the group that killed her mother and took her son.

She appeared again in Nantes, near the city's own little version of Diagon Alley. And she was lucky almost straight away- she spotted Dolohov, who had transfigured his hair short and dark instead of the usual long blonde ponytail. And even luckier- he was outside a Muggle bar.

She focused on why she was here, she was here for Remus, and found she could morph. She turned her dark hair to a light, honey colour. She changed her face very slightly, just enough so he couldn't recognise her. Her plan was to play herself off as a gullible, ignorant Muggle and was thankful she was wearing a dark blue tshirt and jeans instead of robes- it made this so much easier.

And then she made her move.

She slipped up behind him, and took a deep breath. She purposefully tripped forward, knocking into him.

"Oi!" He yelled, turning around and glaring at her.

"Oh, I'm so sorry!" She cried, her voice sweeter and lighter than she would have ever allowed it to be in real life. "I do that all the time!"

He looked her up and down, and she felt a wave of nausea hit her but she managed to hide it well. But within ten minutes, she had managed to convince him to get a drink with her. And within half an hour, they were alone in a dirty inn. She had been relieved when she got a glimpse of him hiding his wand in the nightstand drawer, a few moments after they had arrived.

She felt disgusting, allowing him to run his hands all over her body while keeping her pinned against the wall, and tried to keep him from touching the parts that might giveaway that she was a new mother, and it managed to work once she reached between his legs.

She pulled the knife out of her pocket, and stabbed it into his leg, withdrawing it just as quickly. He yelled, stumbling backwards. "What the Bloody Hell?" He demanded, clutching at the stab wound. She gripped the knife tighter as he collapsed onto the bed, still clutching his leg.

"Where's my son?" She demanded.

Dolohov looked at her, glaring. "I don't even know who you are!"

She dropped her morph and his eyes widened. "Oh, but I think you do." She said. "Or, at least, you knew my husband."

He lunged at her, and pulled her mother's wand from her boot, aiming it at Dolohov. He froze, staring at the end of her wand, clearly regretting that he had hidden his.

"It's funny, isn't it?" She asked calmly. "You spent the last few decades loyal to someone who wanted Muggles dead. And yet, you were so eager to shag one."

"How dare-" Dolohov began but paused when she knocked him backwards with a Binding Spell.

"Incarcerous is so useful, don't you agree?" Tonks asked. "Because now I have the advantage."

"You have no advantage." Dolohov spat.

She walked over to his bound form and knelt next to him, plunging the knife into his arm. He let out an angry scream, trying to break free of the bonds. "Where's my son?" She asked. When he said nothing, she stabbed his other arm. He still wouldn't answer, so she dragged the knife across his chest between the ropes.

"Fine!" Dolohov yelled. "Find Greyback- Greyback knows!"

She stood, and gave him a sweet smile. "Thank you, Antonin." She said, lifting her wand. "Obliviate."

His eyes became unfocused and blank, and she slipped from the room. If the Ministry found him, he'd have no answers. They wouldn't know she had done this, or where she was headed next.

And her next destination was wherever Greyback was.