Albus Potter and the last Horcrux.

The inside of the willow

McGonagall instructed the boys to go to the library and catch up that weekend, all of them went. Except Scorpius. Scorpo wanted to find out what we were up against.

He crept past Hagrid's Hut and transformed into his phoenix animagus. The graceful bird swooped into the bashing branches and pressed the knot with a yellow beak The branches stilled and a shaft opened. Scorpius glided through.

With a whoosh he was human again and could hear the tree trying to grab him but he was safe inside. The hollow, crisp walls echoed the non existent sound as he strode along the mud path into a peculiar opening. Suddenly the entrance vanished, replaced with a dirt wall and dim lights flickered inside the cavern. Scorpius heard some footsteps. Not his. He glanced around and couldn't see anyone or anything except dirt and shadows.
Clomp, clomp
The footsteps came nearer as well as a slight whimpering sound.
The cave suddenly became bright and Scorpius saw two men.
"Go on Draco," one said evilly, "he is no good for ussss." The voice was like billions of snakes whispering.
The other man was the one whimpering. His blonde hair patted down. You could see the bitter pain on his face.
"He is just a child, my lord." he pleaded
"A child he may be but he has sided with the wrong people. He wants to bring us down." was the reply.

Scorpius was ice cold, speechless and scared. His face blank of any emotion apart from confusion.
"Scorpius my lad." whimpered Draco
"I have to...he will...the Dark Lord will kill me and your mother...I'm sorry."
"Dad, let us defeat him! He is right there we can conquer him together!" Shouted Scorpius, his throat raw.

Draco had the face that he wore at the night when Dumbledore died. There was no Snape to help him and no tower to jump off. Draco felt isolated in this room. He felt sick. He didn't want to kill his son, like he didn't want to kill Dumbledore. But this time he was strong.
"Avada Kedavra" he mumbled and the boy crumbled onto the floor helplessly.
The men apparated away. The Dark Lord had returned to power. They had been too late.
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AUTHORS NOTE
Thankyou for reading! Next chapter will be a bit off topic, Scorpius choosing whether he wants to be a ghost or not ect :3