Lightyears Trilogy by Troy D. Wymer

Lightyears Trilogy is an adventurous science fiction novel with three stories, the novel Lightyears, the novella Lightyears II: Intragalactic Terrorism, and the novelette Lightyears III: Ominous Intervention. It’s a story of two brothers whose lives are changed forever as they travel through space and time, destroy evil empires, and save the galaxy.