Shout-Out: The Cold Between by Elizabeth Bonesteel

When her crewmate Danny is murdered on the colony of Volhynia, Central Corps engineer Commander Elena Shaw is shocked to learn the main suspect is her lover, Treiko Zajec. She knows Trey is innocent—he was with her when Danny was killed. So who is the real killer and why are the cops framing an innocent man?

While retracing Danny’s last hours, they discover that his death may be tied to a mystery from the past: the destruction of a Central Corps starship at a wormhole near Volhynia. For twenty-five years, Central Gov has been lying about the tragedy, even willing to go to war with the outlaw tribe PSI to protect their secrets.

With the authorities closing in, Elena and Trey head to the wormhole, certain they’ll find answers on the other side. But the truth that awaits them is far more terrifying than they ever imagined—a conspiracy deep within Central Gov that threatens all of human civilization throughout the inhabited reaches of the galaxy . . . and beyond.