The thing about Grindle Snips was that she had no concept of privacy whatsoever. You could be minding your own business threatening to transfigure a ratty Mercator first-year into its proper species when she would show up out of nowhere. Typical.
It was her head that came up through the floor first, startling the first-year so much that he tucked tail and ran. Finnegan sighed, lowered his wand arm and used his free hand to quickly slick his hair back for what little good it would do.
"Hello Finnegan," said Grindle sweetly as the rest of her came up slowly through the carpet.
"Grindle..." he said flatly. "You're interrupting." He tried to look past her at the mop of bobbing blonde hair running down the length of the hallway. Jinxing someone while their back was turned wasn't honorable, but boy did he really want to jinx this particularly first year.
Following his gaze, Grindle lazily turned her head, her ghostly hair drifting after her like seaweed. It never ceased to be strange to be able to see both the back and the front of someone's head at the same time.
"If you're bullying first-years I'll report you to-"
Finnegan snorted loudly. "I wasn't bullying anyone. It was the other way around, the little runt was lecturing me." Grindle continued to drift upward until she hovered a little above him, which was just unfair considering he was actually taller than her. His gaze fell down to her slack hand in which she held a pair of scissors, then he looked back up again. "He was blathering about the rules out of nowhere, can you imagine? Getting accosted by a first-year? It's offensive, it is. They're very irritating if you ask me, they're very loud and annoying but small, so you keep tripping over them and they're clueless about everything, but I was never that obnoxious, or that tiny, I-"
He stopped there because he recognised the look Grindle was giving him all too well.
"No." He said, taking a step back. It wasn't hard to guess what she was thinking. "I'm not letting you touch my hair."
Grindle cocked her head to the side, eyeing him skeptically. "It doesn't need touching, it needs cutting."
Finnegan raised his wand arm again, though he struggled to think of any spell that would get rid of her. She was already dead after all.
"It's a disaster," Grindle sighed dramatically as she hovered around him, as though she hadn't already taken the measure of him several times over in the past few weeks. "I could make you look marvellous if you'd just-"
"But I am marvellous."
"You are a catastrophe," Grindle countered hotly, her spectral scissors giving a sharp snip-snip that sounded not entirely unlike bones snapping. "Like you've been dragged through a hedge."
"That's just rude," Finnegan huffed, blowing a lock of dark hair from his eye. Admittedly, it was starting to get in the way and if he'd still been playing Quidditch he might have cared a bit more about the strands getting in his eyes. "It's a look and besides, it's not my fault you haven't kept up with trends since you died in the Middle Ages."
"The 1890s were hardly the Middle Ages, you little hooligan!" Grindle shrieked. Her hair swooped upward in a violent, frizzed wave, mirroring her indignation. "The late Victorian era was the pinnacle of hair-dressing! We had discipline! We had structure! We didn't walk around looking like our heads had been used as mops!"
She lunged forward, scissors raised, snip-snip-sniping the air. Finnegan was glad he already had his wand out.
"Fumos!"
A jet of thick, suffocating grey smoke erupted from the tip of his wand and billowed outward with surprising force, filling the narrow corridor in a heartbeat. That was plenty time to spin on his heel, duck low, and swerve around a heavy suit of armor before darting up the nearest staircase. He only stopped when Grindle's shrieking had faded away into nothingness.
Breathing hard, he came to a halt in a hallway and looked around. It was a bit harder to make out the exact location in the half-gloom, but a faint blueish glow coming from further down the corridor provided just enough light for him to recognize he was on the first floor.
Thinking it unwise to stay still, Grindle was rather stubborn after all, he briskly walked down the corridor wondering if perhaps it would be safest just to return to the dormitories. Almost subconsciously, he was drawn toward the light spilling out of one of the rooms onto the corridor. As he approached, two thoughts struck him at once. First, that this was the trophy hall which the Headmistress had mentioned to be off-limits for the night. Secondly, more notably, that someone was already there.
And not just anyone.
Grinning to himself, Finnegan tip-toed forward, halting just a few paces behind the lone girl and cleared his throat. "Ten points from House Modron, Ms. Evans," he said in his best mock voice. He knew very well what stern and disappointed Professors sounded like. "Can't you read?" He dipped his chin toward the sign on the door.
Dropping his act just as quickly, he came up beside Scarlett to see what she had been gawking at. He didn't really know her, but being in the same year and house they had been in classes together often enough that no introductions were needed. Squinting he looked at the destruction and the scorch marks, then flashed a lopsided smile at Scarlett. "You never told me you were this good at a Reductor Curse, that's a little scary honestly." Then he frowned. "What d'you reckon happened here?"