The Amulet of Kalos

You have been called to the headmaster's office, accused of doing something that you did not do. Your headmaster seems to be possessed; his eyes turn green and he calls out that "the Abyss has spat out the Amulet of Kalos." What follows is an adventure that takes you around the world, trying to keep one step ahead of forces that might kill you, whilst trying to save the world at the same time.