For Trevor Stone, however, what began as a straightforward battle for survival has grown into a complex campaign against both external and internal adversaries. While his forces confront a human/alien alliance, Trevor finds that his most dangerous enemy is much closer to home. Schism is the fourth installment in the five-part Beyond Armageddon series and features massive battles over the skies of California, a conspiracy that will shake the foundation of humanity's empire, and a conversation with the gods. Get Ready. Hold on. Choose your side.