Three deadly accidents that might have been magical murder. A dark witch with a grudge against the King family. Federal agents with supernatural abilities. And, as usual, Dawson and Grady are smack dab in the crosshairs of trouble even they can't outrun.

When Grady King's brother Knox is targeted by shady characters, old secrets, coverups, and lies come to light. Grady and his boyfriend Dawson begin to question what really happened when Grady's grandparents and Dawson's parents died. Then agents with the Tennessee Bureau of Supernatural Investigation show up pursuing a different case, only to discover that the crimes appear to be connected, with a vengeful dark witch at the center of the plot. And since monsters never sleep, Grady and Dawson are still carrying out their duty to hunt dangerous paranormal creatures, restless spirits, nefarious faeries, Civil War ghosts, creepy cryptids, and things that go bump in the night. It's all part of the centuries-old King family mandate to protect the people of Cunanoon Mountain and Transylvania County, a mission Grady and Dawson are sworn to fulfill.

But when it looks like something is hunting the people Grady loves, it's time to dig into the family's painful past, uncovering dangerous details of long-ago hunts against immortal creatures who never forget-or forgive.

Can they solve the mystery and figure out who's behind the deaths, or will they bear the deadly consequences of their hidden history? Reckoning with the past just might destroy Grady and Dawson's plans for the future and set loose a tide of malicious magic that could sweep them all away.

Sins of the Fathers is a thrill-packed MM romance adventure full of fast cars, outlaw country boys, snarky werewolves, vengeful ghosts, menacing monsters, and a love that can't be denied.