The Hound of the Burgervilles by E.J. Russell

This case is really going to the dogs…

After I try a little off-the-books interrogation to locate my selkie almost-boyfriend’s nearly-ex-husband (don’t ask, it’s complicated), I’m in the doghouse again with my bosses, who bust me back to surveillance. Ugh. So when another human inexplicably storms into Quest Investigations—something our security spells ought to prevent since I’m supposed to be the only human admitted to our offices—I’m reduced to staking out local fast food restaurants to check out the guy’s alleged sighting of a giant, glowing-eyed, dumpster-diving spectral hound.
Ridiculous, right? Humiliating, too, not to mention boring. But at least they didn’t fire me.
Imagine my surprise when there actually is a giant, glowing-eyed, dumpster-diving spectral hound—one of the Cwn Annwn, Herne the Hunter’s traitor-tracking dog pack, to be exact. Jeez, who let this dog out? It’s my case, though, so it’s up to me—Matt Steinitz, aka Hugh Mann—to return him to Faerie. But while Herne’s normally hopping kennels are inexplicably unpopulated by pups, they’re playing host to one extremely dead body.
Uh oh. Looks like someone’s bite was a lot worse than their bark.
Guess my love life will have to take a back seat again while we nose out the truth.
Dammit.