Arrived

World At War is the second book in the Arrived series. The Aliens are highly intelligent, brutal and will stop at nothing until the human race is extinct. They kill everything they touch: everything that stands in their way. Angie and her friends are hiding in an underground military base located in Texas trying to stay alive in the shadows while the military scientists try their hardest to make a breakthrough with the aliens protective barrier. Can the human race survive an unending war? Or will they soon cease to exist?