Cosmic Destinies (Course of the Worlds Book 3)

A crew that desperately wants to find its way home, revolutionary physics, space battles with a powerful superweapon, and a showdown between two civilizations which definitively intertwines the destinies of multiple universes.

Course of the Worlds:

Book 1 - The Last Spaceship
Book 2 - New World
Book 3 - Cosmic Destinies