When the existence of humanity is threatened, call on the Shadow Corps. Book 4 in the Shadow Corps series. Sam has been on a mission, assassinating alien threats, but the final days are upon us-the enemy is on our doorstep.They won't stay there for long if the Shadow Corps has anything to say about it.Winning this fight will require training on distant planets, great sacrifices, and learning to trust new friends. Don't leave Sam to face the...