Worlds Away: the Interstellar Age Book 3 (Volume 3)

For a thousand years the Kulsat Armada has ravaged the galaxy searching for the lost legacy of an extinct race of technologically advanced beings. They destroy anyone who gets in their way. Now they have turned their attention to Earth and are gathering their forces for an invasion. Justine, Michael and Alex each hold a key to stopping the enemy, but they are worlds away from each other, and they are running out of time... - The Interstellar Age- Book 1 - Forbidden The Stars Book 2 - Music of the Spheres Book 3 - Worlds Away