"More than you can imagine. Go, Potter."
"Thanks... take care of yourself, Malfoy."
Potter went towards his mates and cast a powerful Protego spell to deflect a spell heading toward the twins. Malfoy went the opposite way and managed to grab a wand from a down Death Eater. He Disillusioned himself and went through the battle Stunning all Death Eaters he found.
Hours later, Draco saw Hagrid carrying Potter and dropping him to the ground in the courtyard. The Dark Lord said it was over and to join him. But there was no way Draco would willingly cross over to him, again. However, Neville charged, and the Dark Lord tried to punish him, but Neville cut off the snake's head with a giant sword. In the commotion, Draco realized Harry had disappeared.
Everyone was pushed into the building, and Potter came back from the dead. He challenged the Dark Lord in front of everyone and explained the Dark Lord was doomed.
"You want to know why the Elder Wand doesn't work? It recognized a new owner before Snape could kill Dumbledore. Someone who never even touched that wand." Potter explained. "And the wand accepted him as its new owner... Draco Malfoy."
The Dark Lord scoffed. "Ha! It is no matter. You no longer have the twin cores. After I deal with you, I'll deal with that coward, once and for all."
Potter barked a laugh, as Draco cringed from his title. "But you're too late. Draco Malfoy gave this wand to me a few hours ago. Let's see if the Elder Wand knows who its true owner is! Expelliarmus!"
"Avada Kedavra!"
Draco could hardly watch but managed to keep his eyes open for the end. The Dark Lord was vanquished at Potter's hand. He and his son were finally free. He saw the crowd storm Potter, but Draco was suddenly grabbed by his father and dragged out of the hall into a classroom nearby.
"How did Potter get your wand!" his father demanded to know.
Draco felt strong for once. "I gave it to him!"
His father slapped him. "How dare you... you bloodtraitor whore!"
Draco's eyes filled with tears, and his mother stopped his father from hitting him, again. "Don't!"
Lucius turned on her. "Don't stop me from...."
But Draco Stunned him, standing up to his father for the first time. He looked at his father on the floor and then at his mother. "It's over."
She nodded.
"Where is he?" Draco demanded. His mother had promised to take care of his son.
"Your father made me leave him behind at the Manor."
Draco grit his teeth but refrained from calling his mother names. He asked her to come with him, but she looked at her husband and chose him, again.
"I'll stay. Go... find peace. I will always love you," she said, but her words felt weak. She chose Lucius at the end, and Draco didn't try to sway her.
The celebration was dying down in the Great Hall, but also despair and sadness was setting in. A lot of people were dead. He even heard cries to secure the prisoners and take their wands. Draco knew his time to escape was closing. He ran down to his dorm first and magicked everything into his bag that had an Undetectable Extension Charm on it, before sneaking up into the Head's office and using the floo to get home.
The Manor was quiet, but Draco ran to his room. His son, his heart, was crying, pleading for attention. He picked him up, and his boy immediately stopped crying. He Summoned a milk bottle and fed his son, unsure when his mother had fed him last. He gave his son extra love and affection as he finished the bottle. He was furious his mother had left him alone. His son's hands touched his face as though happy to see him, the sweet child that he was.
Draco had been so worried about him, but his father had placed his son in his wife's care and sent him back to school under threat of pain. Thankfully, his son looked fed and wasn't hurt, at least. Draco wanted to stay here, get his son to sleep and find his own bed... but this was the Dark Lord's base of operations. The war was over, and Draco wasn't on the winner's side. He made a wrap and tucked his boy in, close to his chest. He could look down easily and see his son, who giggled happily up at him. He was worth everything.
Draco quickly swept the room, packing everything he could think of: clothes, supplies and books for a life on the run. He had heard how Potter survived a year with the whole country after him. That was what he had to do. He couldn't be caught. He was a Death Eater, a marked criminal... a known coward and worse. Everyone would know what he was, and his son would be shunned... a pariah.
Draco had to make sure his son was safe from all that. No matter what, his small baby boy was innocent. He had to be kept away from the hate and scorn that would follow the Malfoy name. No... Malfoy wouldn't be his last name. Draco wouldn't tell his son his last name or even his own name...Draco. No, he would be his Papa, and that was it. Draco decided it would be safer if he never said his first or last name, again.
Draco looked around his former home and couldn't bring himself to take anything of sentimental value. He wanted nothing to remember this place or this family. The place where he was branded, where his innocence was taken, and he was torn apart. No, this wasn't his home. It was his prison. He went back to his room and shouldered his bag. He was about to leave when his eyes landed on his secret cubby spot under the floorboards.
He couldn't risk bringing the box under it to school. He bent down and pried it out. He put the secret box into his bag. Then he walked out of the house to the end of the wards and Apparated away, hoping his son would handle the journey okay.