Clash of the Aliens, Book 5
When a Hoo-Lii invasion fleet unexpectedly arrives and attacks, they cripple Earth’s space defenses. The Space Force retreats to an asteroid-based fortress. The human space fleet suffers terrible damage and on the brink of defeat, dissident aliens and exiled humans arrive to join the battle as the Hoo-Lii drop a small asteroid on Earth. Will the new allies arrive in time?