A Meeting at Corvallis is a 2006 science fiction novel by S. M. Stirling. It is third novel in the Emberverse series that began with Dies the Fire and continued with The Protector's War. The story describes the events of roughly a year, some nine to ten years after the Change that altered the Laws of physics. It describes the war between the Portland Protective Association (PPA) and the other communities of the Willamette Valley. Source: Wikipedia (en)