A troll has gone berserk in the Headmaster's study at Hogwarts. It is about to smash, crush and tear several irreplaceable items and treasures, including a cure for dragon pox, which a Headmaster has nearly perfected; student records going back 1000 years and mysterious handwritten book full of strange runes, believed to have belonged to Merlin. In which order would you rescue these objects from the troll's club, if you could?