Vault of Ice

The Ice Vault is a secret room that was located at the end of the Vanished Stairs hidden by a wall on the fifth floor at Hogwarts School of Witchcraft and Wizardry, and is one of the five fabled Cursed Vaults that was said to housed treasures and prophecies from before the time of the four founders of the school. If tampered with, this vault would unleash cursed ice that would encase all in its path.