A scroll of rumours, Chinese Whispers style
A magical catastrophe that changed the world of Kalimon forever
An event that changed the Dragon Empire forever
"Remember, lad, nothing on this world remains constant, not even the world itself or anything beyond. The only constants ever are the Fabric and time"
The story of a castle where time and the sound of piano intertwines
Game Cliche 2.
Upon learning about "the five ancient jewels" or "the nine legendary icons" or whatever, you can be quite confident that Saving the World will require you to go out and find every last one of them.