Ghost of Truth by Alice Winters

Hiro:
When I first realized that I could see the dead, I never imagined that it would allow me to help save the lives of others and pull me into Detective Maddox Booker’s path. Through my ability, ghosts have become some of my greatest friends and allies.
But now, someone’s dead and his ghost is gone. Ghosts have sought my help for my entire life, wanting to be heard, but something is keeping them quiet, almost hostile as our search for the ghost of the dead man leads us to a small village. Even though everything looks normal on the outside, I’m starting to wonder what’s happening on the inside.

Maddox:
Life is better than it’s ever been. Hiro’s by my side and has brought my best friend Reggie back into my life—if we can consider Reggie’s harassment (even as a ghost) a positive. And even Hiro’s horde of ghosts won’t keep me from asking him to move in with me. The only issue is that work is never quiet, especially when Hiro is able to dive into a whole new side of a case by speaking to the victims of the dead.
But when someone takes Hiro from me in the middle of the night, I know that I will do absolutely anything to get him back, and I will make them pay for what they’ve done.