ABOUT INVASION MARS: After a whirlwind campaign to discover and eliminate Krothi bases in the Solar System, the action on Mars intensifies when the Vanguard of the alien fleet arrives early with 36 ships. With only 24 Earthforce Ships provisioned for active duty, Karpov relies on his inherent skill to try and defeat the Kroth in detail. At the same time, hidden Kroth forces on Mars and others reaching the moons Phobos and Deimos, begin a round of new attacks on Earthforce bases and outposts on Mars. Earthforce struggles to surge ships and Marines to Mars in a wave of successive convoys, while Karpov must divide his attention between close support of Mars operations and his campaign to scour the inner and outer system of Krothi support bases. Meanwhile, Fedorov begins a series of Recon missions aimed at finding any hidden Kroth "Sleepers" on Mars. His efforts lead him to some amazing discoveries about this alien adversary, their biology, and a greater threat that may already lie hidden right beneath the surface of Mars. An attempt to purge their nests with stronger weapons leads to a disaster that underscores more unknown capabilities of the Kroth, and shakes Fedorov and Karpov when Director Kamenski makes a startling revelation. Answers to unsettled mysteries rooted deep in the Kirov Series are revealed here for the first time, and long time series readers will not want to miss the sequence now underway as the "Mars Trilogy." Here is Volume two of that group-Invasion Mars!