Xen'drik Expeditions Scenario
An Adventure for 6th Level Characters
From the introduction:
In a time before time, the three great progenitor wyrms - Khyber, Eberron, and Siberys - battled for supremacy. At the end of that great battle, Siberys was broken into infinite pieces in the sky, Khyber was trapped in just as many pieces underground, and Eberron sacrificed itself to connect the two and give rise to life. Throughout the land, the remnants of the dragons became manifest in the draconic Prophecy.