Eva woke before the break of dawn, the chill of the morning air biting at her skin as she slipped out of the Slytherin dormitory as silently as the serpent she was. The castle was still and dark, the only sound her soft footsteps echoing through the stone corridors. Shadows danced on the walls, cast by the flickering torches that lined the hallways, giving the ancient castle an eerie, almost sentient presence, perfectly suited for the day that’s in it.
She made her way to the kitchens, her heart pounding with a mixture of excitement and trepidation at the risk of getting caught. Reaching the portrait of the fruit bowl, she tickled the pear, and the painting swung open to reveal the entrance. Inside, the house-elves were asleep, a rare moment of peace in their busy lives. Eva moved with practiced stealth, her disillusionment charm rendering her practically invisible. From within her robes, she withdrew several vials of a thick murky grey potion, its contents swirling ominously. She approached the vats of pumpkin juice, carefully pouring a vial and a single hair into each, giving them a quick stir before replacing the lids.
With a satisfied grin, she slipped back to her dormitory, her heart racing with anticipation. Halloween morning arrived, and Eva was the first to arrive at the Great Hall, taking her usual seat at the Slytherin table. She poured herself a cup of tea, and waited with anticipation for the inevitable chaos.
As the hall filled with students, Eva watched with bated breath. One by one, they began to transform, each taking on the appearance of Headmaster Black and each one looking more bewildered than the last. She quickly took a sip of her tea to stifle her laugh and barely managed not to snort into the cup. Her eyes gleamed with mischief as she reveled in her success, watching with amusement as an army of Professor Blacks erupted into a cluster of confused chaos.