Hogwarts: What Lies Beneath Bedrock

Long after The Battle of Hogwarts, the defeat of Voldemort, and disbanding of Death Eaters, Hogwarts was thought to have returned to its former glory. Still nestled deep in the Scottish Highlands, far away from muggles and prying eyes of the city, every year new students and old came back to the ancient grounds like clockwork to become fully fledged witches and wizards. A sense of peace was finally felt on the grounds after years of struggling and pain that came with the war, and the future looked bright. But unbeknownst to the wizarding world, a dark entity found itself forming deep within the ground beneath Hogwarts. The innocent blood spilt, the overwhelming surge of dark magic left over, and anguish left behind from the battle that took so many lives; twisted and manifested itself into a poison rotting at the heart of the ancient school. Now, magic on school grounds has been finicky, plants mysteriously wilting and creatures on edge. How much longer will it be until the students become affected by this strange entity as well?