The Orieli are the first aliens to confront the Serrll Combine in two thousand years. But the Orieli are at war with the Celi-Kran and the Serrll now faces invasion by creatures out of nightmare. On the Moon, caught in a web of Serrll power plays, First Scout Terrllss-rr is betrayed by his Wanderer brother Dharaklin. His ship is sabotaged and he crashes to Earth. Escaping, he now has American security forces after him and the secrets his ship holds...