Treehawke - Treehawke, #1

If the Dead can't get justice, they'll settle for revenge. Dalton Smith believes his shady past is finally behind him: recently married, a new name and career, and a decisive break from his father-Stoney Cove's most notorious felon. "You are a Speaker-with-the-Dead." A young Asukan woman, seeking justice for her brother's unsolved murder, accosts Dalton in a local bar, shattering the web of lies he's crafted to protect himself and the woman he loves. Beneath the Sunken City-segregated home of Stoney Cove's Asukan population-the unavenged Dead begin to stir.
The savage evidence of their fury forces Dalton out of hiding, back into the world he swore to leave behind. But before Dalton can challenge Stoney Cove's demons, he'll have to confront his own.