From the White Wolf website:
During the production of The Scroll of Fallen Races, quite a bit of material had to be cut. Now we've compiled that missing information for your Exalted series.
Welcome to Debris from the Fallen Races a PDF-Exclusive Series Book for Exalted®. Debris of the Fallen Races contains:
* Five martial art styles for Dragon Kings
* Chaos Pattern Charms
* Statistics for subterranean creatures