They're having a party? Louisa's face started beaming as Schirmer explained the preparation. The three boxes couldn't look more intriguing to the Ravenclaw standing still staring at them... and then there was a levitating potion in one of them? O. Em. Gee. She wanted to skip the first two parts of the mission and just gulp down that potion!

A minute after the professor had finished talking, a house-elf made his way into the room with a tray filled with food. Louisa glanced at the creature and smiled formally, too bad he had to wait until they laid down the trestle tables.

SO! The fourth year headed to the first box and sank into it. There were dozens of streamers, balloons and... were those hats? O.o Pffft, Louisa was going to make sure NONE of those hats touched her head. When she straightened up, she had two or three streamers and a bunch of balloons. The girl moved toward one of the walls, set two streamers on the floor while levitating the other with her wand. Reaching a suitable altitude, Louisa mouthed, "Lentesco!" A pale blue light ejected from her wand and hit the streamer's edge connecting it to the wall. She repeated the spell on the other edge and walked few steps backward, bumping into other students gently, and admired her work.

She'd never used magic to prepare a party and decorate a place! This was her first but definitely not her last. The girl excitedly held the other streamers and moved to another wall to repeat the process of hanging them up.