From publisher blurb:
Welcome to the Fertile Crescent. The Fall destroyed the cities of the ancients, leaving only ruins behind. But the lakes remain. Though poisoned, these gigantic seas in the heartland of what was once America provide a source of unimaginable wealth as well as the product of rebuilding what has been lost. Unfortunately, man has not learned from the mistakes that led to the Ancients' fall and a war threatens to destroy the fragile peace in the region before the rebirth can even begin. The destiny of the Fertile Crescent is ready to be decided. You can shape the future.
Include in this Darwin's World Supplement:
Map and Gazetteer of the Fertile Crescent region
15 Adventure Hooks
2 New Classes
24 Regional Factions 24 NPCs
New Mutations and Beast Genotypes
New Feats