Blood trails
The Malfoy boy was still unconscious when they hauled him under the invisibility cloak, draping his arms, with blood soaked all the way up to the elbows, around their shoulders to drag him along.
He absolutely reeked of blood and gore, and more than once Harry had heard Ron gag, trying desperately to keep himself from vomiting.
Harry also felt nauseous, just feeling the blood stain through his clothes and smear on his tanned skin made him want to run away.
His hands were shaking when he pulled out the Marauders map.
"I solemnly swear I am up to no good," he whispered and the ink bloomed on the bit of parchment.
Filch.
"Fuck-"
Ron gazed at him wearily, and Harry showed him the map.
Filch was just a few hallways away. They would have to sneak past him- Harry just hoped he couldn't smell the gore from Malfoy carnivorous teeth.
They pressed against the walls, Ron grunting and sneering when he accidentally tore down an already broken portrait, blood was caked around the broken wood, like Umbridge had been impaled on it.
Filch rounded the corner, a raggedy lamp in his boney hand. He had his usual sneer on his face, and his cat mewled and ran forward.
Right up to them.
"What's there?" Filch grunted and moved closer, then he froze at the sight of bloodied footsteps and broken walls.
Shit-
Ron quickly hauled Draco off of the ground so he wouldn't leave a trail, trying to keep himself from gagging at the intense scent of blood and death.
Filch looked at where the footsteps stopped, and he growled lowly; Harry and Ron silently moved out of the way, the cat's loud meows and the cries from the paintings muffled their shuffling.
Then they ran off, and they heard Filch's scream in the distance.