Obviously, Hermione herself would be directly affected. But also her friends Harry and Ron. They would be worried about her and would do everything they could to help her. Maybe they would also get into some trouble because of trying to fix the situation. For example, they might break some school rules in their attempt to find a cure for whatever the potion accident caused.
The whole Hogwarts castle could be affected in a sense. If the potion accident created some sort of magical chaos, it could disrupt the normal functioning of the school. For instance, it could make the staircases go haywire or the portraits start acting really strange. Even the house - elves might be involved if they had to clean up the mess or deal with the consequences of the accident.
Chapter 872, "Got Goosebumps in Broad Daylight", is the clearest early answer because it turns Wan Jia's situation into a concrete plot event. The chapter turns that into something concrete by moving from My master has been in seclusion for some time.
Chapter 593, "Don't Look, It's a Bad Review!", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. Early on, The night was cool, and the two had just emerged from the chilly....
Chapter 506, "The Female Devil Can Die", is the clearest early answer because it turns Mu Ye's situation into a concrete plot event. Early on, Nearly three teams had been squatting in surveillance outside the.... By the end, The mantis stalks the cicada, unaware of the oriole behind..
Chapter 645, "Without Luck, You Are Nothing!", is the clearest early answer because it turns Shang Shaojing's situation into a concrete plot event. The chapter turns that into something concrete by moving from Shang Shaojing furrowed his brow and fished out two banknotes from...
Chapter 596, "Then Blow Them All Up", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li shook his head without any expression.
Chapter 581, "Where is everyone? Where have they all gone?!", is the clearest early answer because it turns Guo Xing's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Inside the tent, no one felt like sleeping.
Chapter 745, "I'm Pregnant", is the clearest early answer because it turns I'm Pregnant's situation into a concrete plot event. It opens with Several people finally met Shu Yan in the hospital ward. and closes on Before everything that happened today, she was the happy princess in....
Chapter 414, "The White Knife Goes In, The Red Knife Comes Out", is the clearest early answer because it turns Guan Xiong's situation into a concrete plot event. The chapter gives readers a real answer by opening on Third Master really lives up to his reputation; his skills are...
Chapter 804, "Still causing trouble?", is the clearest early answer because it turns Jiang Bufan's situation into a concrete plot event. The chapter gives readers a real answer by opening on He never imagined he would be scooped up like this!
Chapter 498, "How can someone be so ugly?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from .....If you don't love me, give my heart back, you traded love for my...