Luckily, Miss Lestrange's jinx was enough to stop the girl from escaping. He immediately recognized her as one from his own house, leading him to let out a dramatic, long-drawn-out sigh with a shake of his head. Gryffindors tended to have a reputation as pranksters—his own cousin was a perfect example—but he still didn't appreciate shade being thrown at the house he'd embraced for seven years. However, due to Miss Lestrange's help, he was more than willing to ignore it.

"Gryffindor will definitely be losing points for this," he said, eyes narrowing at the perpetrator. "But I will need to speak to the headmaster or head-of-house about the incident, because I'm sure destruction of school property costs more points than I'm capable of taking away." The girl could likely be expelled if it's found the damage was intentional (which based off her laughter and attempted flee, he assumed it was), but that wasn't for him to handle.

"I can, however, award you ten points to Slytherin for your help," he added with an amicable smile. "Unless you're in need of medical assistance, I think it would be best for you to return to the common room and get cleaned up."