Books like Heaven's keep by William Kent Krueger

When a friend of his adopted daughter reports a serial killer targeting traveling panhandlers, private investigator Lucas Davenport is drawn into North Dakota, where he uncovers a violent subculture and a deadly conspiracy.

Private investigator Cork O’Connor finds himself entangled in a deadly gang feud between the Aurora Anglos and the Ojibwe Reservation's Red Boyz after the murder of the Red Boyz leader and his wife.

In this medieval London mystery, Viscount Sebastian St. Cyr aids the Archbishop of Canterbury in uncovering the truths behind two centuries‑apart deaths in an ancient crypt, while confronting family secrets and political conspiracies.

Though she wanted a family of her own, love seemed so unreliable to busy bakery owner Ava McKaslin. Baking and honoring her faith were all she had on her life's to-do list. Until she hired Brice Donovan as her contractor. And her best-laid plans flew out the window! He'd long adored Ava from afar. Now that she needed his help, Brice wanted to show her how joyful life could be when there was love. He--and he hoped, the Lord--had big plans to give this special woman all the happiness she deserved.

Cork O'Connor leaves a taxing police job to become a private investigator in his Minnesota hometown, when an Ojibwe healer requests his help finding a son he fathered years before, leading to a dangerous confrontation.

A forgotten Sherlock Holmes case unearthed in Minnesota: Holmes and John Watson pursue the arsonist known as the Red Demon.

In a Minnesota town hosting an Indian casino, a disgraced judge is found dead, and a young Ojibwa leaves home abruptly. Former sheriff Cork O’Connor takes on the case, probing for hidden ties between the deaths.

"I very much need to be dead." These are the chilling last words left by a man who had everything to live for but took his own life. In the void that remains stands his widow, FBI agent Jane Hawk, surrounded by questions destined to go unanswered unless she does what all the grief and fury inside her demand: Find the truth, no matter what. People of talent and accomplishment, people seemingly happy and sound of mind, have recently been committing suicide in surprising numbers. A disturbing pattern is beginning to emerge. Jane is determined to give up everything to find out why. And if that means going rogue and becoming America's Most Wanted, then so be it. Those arrayed against her are legion, and devoted to protecting something profoundly important-or terrifying-enough to exterminate any and all in their way. But Jane is as clever as these enemies are cold-blooded, as relentless as they are ruthless. And she is driven by a righteous rage they can never comprehend. Because it is born of love.

In the remote Quetico-Superior Wilderness near the Canadian border, a missing singer’s father enlists former sheriff Cork O’Connor to find her, sparking a perilous search that pits private investigators, FBI agents, and desperate locals against enemies who will do anything to keep the disappearance a secret.

In icy Tamarack County, former sheriff-turned-PI Cork O'Connor investigates a missing wife and a pattern of violent crimes, uncovering a decades‑old miscarriage of justice that threatens the safety of his family and friends.

In 1961 Minnesota, 13‑year‑old Frank Drum must confront the far‑reaching impact of a family tragedy, as secrets, adultery, and betrayal unravel his Methodist household and the close‑knit town it calls home.

Detective Cork O'Connor and his daughter Jenny uncover a murdered teenager and a perilously endangered baby on the remote Lake of the Woods.

Private investigator Cork O'Connor, sent to guard a mine amid protests over nuclear waste storage, uncovers five missing bodies and a new murder, killing him with his own gun.

After a quiet, lonely life, widowed rancher Matthew Sheridan discovers hope and romance when he meets Hope, a self‑assured daughter of a wealthy family, and finds his single father's path to love.

Cork O'Connor races against a looming winter storm to find a missing man in Minnesota’s Boundary Waters, uncovering a deadly mystery that threatens not only his life but the lives of hundreds.

When a missing Ojibwe girl’s body washes up on a Lake Superior island, former sheriff‑turned‑private investigator Cork O’Connor battles myths, silence, and a sex‑trafficking ring to uncover the truth and save the girl’s family.

Cork O'Connor and his son Stephen investigate a senator’s fatal plane crash on Desolation Mountain, uncovering a web of mystery and danger that threatens a remote Minnesota community.