Collision - Rachel Aukes

We are not alone in the galaxy. 

On a dark world far from our home, an epic war started a chain reaction, sending two alien races on a collision course with Earth.

Sienna Wolfe lives alone in a cabin in the Ouachita Forest. Her life is quiet and simple until a strange craft crashes in the forest nearby.

To keep their presence on Earth a secret, Sienna is offered a choice: die or go with the alien she saved from certain death. Sienna accompanies the alien and finds herself caught in the middle of a bitter battle between two warring alien races, the likes of which could wipe out mankind.

As she races to align her new allies with the U.S. military, she soon learns that her new friends may not be as noble as they seem. Can Sienna prevent an interstellar war from claiming Earth, or will she become the harbinger of an alien apocalypse?