Shielded Sun. Black Ocean: Astral Prime, #3

Most energy shields keep weapons out. This one traps everything inside. With rival factions in orbit around Shadow Planet, the obvious threat was one another. When the defenses of an ancient alien outpost activate, trapping everyone in the star system, it becomes clear that there was more to worry about beneath the planet's surface than in orbit around it. As Hiroko plays peacemaker to three rival fleets, Cedric and Kane lead an effort to shut down the power source keeping the system-wide energy field operational. Shielded Sun is the third book in the Black Ocean: Astral Prime series.
It hearkens back to location-based space sci-fi classics like Babylon 5 and Star Trek: Deep Space Nine. Astral Prime builds on the rich Black Ocean universe, introducing a colorful cast of characters for new and returning readers alike. Come along for the ride as a minor outpost in the middle of nowhere becomes a key point of interstellar conflict.