Terri Blackstock is known for writing Christian suspense novels that keep readers on the edge of their seats.  Her novels also feature heroic characters, a touch of romance, and explore matters of faith.   Her latest, Intervention, tells the story of Barbara Covington, who has one more chance to save her daughter from a devastating addiction: staging an intervention. But when eighteen-year-old Emily disappears on the way to drug treatment—and her interventionist is found dead at the airport where she was last seen—Barbara enters her darkest nightmare of all.

Here is a list of some other Christian fiction novels that would appeal to fans of Blackstock:

Sacred Trust by Hannah Alexander
Dr. Lukas Bower believes in God, the Hippocratic Oath and doing the right thing. Lukas won't prescribe drugs to an addict just because he's the son of a hospital board member. Or let an obese man die because he doesn't have insurance. Lukas didn't play hospital politics at his former job, and he won't in this small-town Missouri emergency department. One very attractive colleague seems to appreciate Lukas's commitment to honor and truth. But Dr. Mercy Richmond's feelings will be tested when her child is brought into Lukas's E.R., putting her sacred trust, her heart—and her daughter's life—in his hands.

Crystal Lies by Melody Carlson 
A Son’s Addiction. A Mother’s Heartbreak. A Family’s Crisis. As the wife of a prominent city attorney and the mother of two teenage children on the brink of adulthood, Glennis Harmon lives the kind of successful, high-profile life that many people envy. But when nineteen-year-old Jacob is drawn into substance abuse, Glennis’ “perfect” world shatters like a crystal vase rocked from its once-steady shelf. Glennis struggles to understand the response of her family as they seek to support Jacob’s recovery. Her husband appears more concerned with protecting his image than with finding help for their troubled son, but Glennis becomes determined to save Jacob no matter what the cost.

Alaska Twilight by Colleen Coble
"You're afraid of really living, Haley." He flicked his finger at her camera. "You hide behind your camera instead of stepping out and engaging life with both hands. You're so afraid you'll fail at something, you won't even try."For some people, Alaska is a breathtaking wilderness adventure, full of light and beauty. For Haley, it is a dangerous world of dark dreams and tortured memories. On the surface, she's here to document wildlife activist Kipp Nowak's bear encounters. But her real reason is to unearth the truth about a past murder.

Violet Dawn by Brandilyn Collins
Something sinuous in the water brushed against Paige's knee. She jerked her leg away. What was that? She rose to a sitting position, groped around with her left hand. Fine wisps wound themselves around her fingers. Hair? She yanked backward, but the tendrils clung. Something solid bumped her wrist. Paige gasped. With one frantic motion she shook her arm free, grabbed the side of the hot tub, and heaved herself out. Paige Williams slips into her hot tub in the blackness of night-and finds herself face to face with death. Alone, terrified, fleeing a dark past, Paige must make an unthinkable choice.

The Edge of Recall by Kristen Heitzman
She locked up the vision like a monster in her mind's maze, but it lurked there, on The Edge of Recall.Tessa Young is a landscape architect who specializes in the design and creation of labyrinths. For years she has immersed herself in the healing aspects of these elaborate structures, searching for God and hoping to make sense of the nightmares that have plagued her since childhood.When Smith Chandler, a colleague who once betrayed her, offers an opportunity to reconstruct a remarkable Colonial-era labyrinth, she can't resist this project of a lifetime. But one evening, as dusk falls, an assailant ambushes Tessa and Smith and the real nightmare begins.

The Note by Angela Hunt
When the unthinkable happens . . .En route from New York's LaGuardia Airport to Tampa International, Flight 848 bursts into flames and crashes into Tampa Bay. All 261 passengers and crew are killed. For one week, newspaper columnist Peyton MacGruder and her fellow reporters cover one of the nation's worst air disasters in years with overwhelming and numbed emotions.Then a woman Peyton's never met gives her a plastic bag that has washed up behind her house. The bag contains a note, almost certainly from the doomed flight, with a simple yet wrenching message: T- I love you. All is forgiven. -Dad. Combing through the passenger list to find the victims whose children's names begin with T, Peyton is determined to deliver the note to its proper owner. A quest which will prove as important to Peyton's own life as to the mysterious T.

The Witness by Dee Henderson
Police Chief Luke Granger's witness to a murder, Amy Griffin, has been on the run for years. Her family thinks she was murdered eight years ago, but Amy chose to accept a life in the shadows in order to protect her sisters' lives. Now unveiled secrets about their father have thrust the sisters into the public spotlight. The man who wants Amy dead now sees her sisters as the way to locate her. Luke and two of his homicide detectives are determined to stand in the way. They are each falling in love with a different sister, and it's become a personal mission to keep them safe. But chances are that at least one of them will fail, and facing the future will take a faith deeper than any of them currently knows.

Nobody by Creston Mapes
They said, “He’s a nobody.” They were dead wrong. When reporter Hudson Ambrose hears an early morning call on his police scanner about an injured person at a bus stop on Las Vegas Boulevard, he rushes to the scene to get the scoop. His world is blown off its axis when he discovers a murdered homeless man with a bankbook in his pocket showing a balance of almost one million dollars. Should he wait for the police, knowing the case will get lost in reams of red tape, or swipe the bankbook and take the investigation–and perhaps a chunk of the money–into his own hands? With sirens bearing down on the scene, Hudson makes an impulse decision that whisks him on a frantic search for answers, not only about the mysterious dead man, but about the lost soul lurking within himself. Uncovering bizarre links between a plane crash, a Las Vegas pit boss, a dirty cop, and a widowed Atlanta business mogul, Hudson is forced to find out: who was Chester Holte, what was he doing on the streets, and why are his homeless friends convinced he was an angel in disguise?

By Reason of Insanity by Randy Singer
After a series of killings, reporter Catherine O'Rourke is plagued by dreams that reveal each crime in ghastly detail. But because of her intimate knowledge, she's charged with murder, and her high-priced lawyer wants her to plead insanity. Can his famed legal maneuvering save her—or will it take a miracle?

Admission by Travis Thrasher
Adventure Company entrepreneur Jake Rivers gets a call from the parents of a woman who has disappeared and who was last seen with Alec, Jake’s best friend from college. The girl’s parents believe she is hiding out with Alec, but Jake hasn’t heard from him in 10 years. Jake’s moved on from his college days, but the memories of what he’s tried to forget—a friend’s suicide, an enemy’s mysterious disappearance— keep surfacing. Someone wants to keep him from discovering what really happened.

Wiser Than Serpents by Susan May Warren
Her sister had vanished, trapped in a human slavery ring. To find her, FSB agent Yanna Andrevka arranged her own kidnapping into Taiwan's sex-trafficking trade. And found herself with no way out. Until Yanna discovered an ally deep undercover: Delta Force captain David Curtiss. He was after the kingpin of the Twin Serpents, the organized crime syndicate that had Yanna and hundreds of others in their clutches. With opposite agendas, David and Yanna had to rely on each other to outwit their cold-blooded enemy.