Star Power and the Mystery of the Lonely War collects issues 16 through 20.
Accompanying the Millennium Federation's flagship exploration vessel to a new star system is a once-in-a-lifetime opportunity. The thrill of discovery and adventure is one Danica Maris cannot pass up, but the journey is long and she may not be prepared to face the reality of life beyond the known stars.
Rumors abound that the galaxy outside the Millennium Federation is barbaric and cruel. Danica has seen many battles as Star Power, but she has never known war. Her resolve and confidence will be tested, and there are grim consequences if she cannot uphold the virtues of a Star Powered Sentinel.