Whenever that feeling of "everything is going smoothly" appeared, trouble would always pop up out of nowhere, as if to prove one thing—life was not all smooth sailing.
For example, just when everyone felt the final exams had become easier, Snape would step forward and, through a "fine-tuned" Potions exam, warn the students that they still could not let their guard down.
For example, after the joint exam for Care of Magical Creatures class and Defence Against the Dark Arts, just as the students were all praising Lupin, Hagrid, and Sirius Black, a bad piece of news began spreading around the school—
Professor Lupin had already submitted his resignation, stepping down from his post as Defence Against the Dark Arts professor.
The students who heard the news were all shocked and regretful. At the very least, among the students who had enrolled in the past two or three years, none had ever met a professor like Lupin.
He had a gentle nature, and during class he could always give students guidance and encouragement at the right moment. The classroom atmosphere was fun and lively, while also filled with practical magical knowledge.
Under Lupin's teaching, many students had not only learned how to fight dark magic, but had also learned to face the fear and unease in their hearts.
And so many students took action, asking around to confirm whether the matter was true or false. They hoped it was only a rumor, not something that had already happened.
The Gryffindor students were especially active. They started with the friends who had passed on the news, and traced it all the way to Hufflepuff House.
The Hufflepuff students confirmed the news. One student had overheard Sprout chatting with Hagrid while helping out in the greenhouse.
At the time, Hagrid had come