A tragedy brings a young boy into the home of a "perfect" family--one whose dark secrets begin closing in, until a horrifying moment changes everything.

Tommie Ware’s life is turned upside down the summer of 1958, just after his eleventh birthday. When his beloved aunt—the woman who raised him—doesn’t return after her shift as a night nurse and is later found murdered, there is only one place left for Tommie to go: “home” to the mother who handed him over the day he was born.

All is not as it seems behind the hedgerow surrounding the lavish Henneberry estate where Tommie’s mother, Esther, works as live-in housekeeper. Her employers have agreed he can stay until she “sorts things out,” but as she's at the family’s beck and call around the clock, Tommie is mostly left on his own to navigate the grounds, the massive house, and the twisted family inside.

Soon he is enmeshed in the oppressive attentions of matriarch Muriel, who is often heavily medicated, and of fifteen-year-old, Martin, who treats Tommie sometimes like a kid brother, sometimes like a pawn in a confusing game. Dr. Henneberry mostly ignores Tommie, and seems eager for him to be gone. Then there’s the elderly neighbour, who may know more about the family's past than anyone else will say.

By summer's end, the secrets and games tighten around Tommie and his mother, until a horrific crime is discovered and we are faced with an unthinkable question: could an eleven-year-old boy really have committed cold-blooded murder?

Praise for An Unthinkable Thing

Shortlisted for Crime Writers of Canada Awards of Excellence - Best Crime Novel

One of The Globe and Mail’s “Six thrillers to help soothe the crime of summer’s end”
One of CBC Books' Fiction Books to Watch for in Spring 2022
Featured on LoanStars “April 2022 Adult Top Picks!”

“…perfect reading for the last lazy golden days of September.”
—Margaret Cannon, Globe & Mail

“A superb read about helplessness, power, wealth, honesty, and truth—nightmarishly compelling.”
—Booklist (starred review)

“From the enticing first pages to the shocking last lines (don’t peek!), Nicole Lundrigan’s An Unthinkable Thing explores the trauma of loneliness and the power of belonging, through the eyes of a tender, unforgettable young narrator. You’ll be deeply moved by this thoughtful and atmospheric page-turner.”
–Ashley Audrain, international bestselling author of The Push

“I loved AN UNTHINKABLE THING, and I confess feeling a good deal of envy in the artistry of its telling. This is a magnificent example of all the elements of fine fiction—an engaging narrative voice, a profound evocation of time and place, a complex braiding of plot lines—converging to create the perfect tale. Add to this enticing mix a deeply compelling mystery that doesn’t wholly reveal itself until the final page, and what more could any reader ask for? If I were a judge on the Edgar Committee for Best Novel, this story would be at the top of my short list.” 
— William Kent Krueger, New York Times bestselling author of Ordinary Grace and This Tender Land

“In Nicole Lundrigan’s AN UNTHINKABLE THING we meet 11-year-old Tommie Ware, whose life is forever changed by the dark secrets of the wealthy family his estranged mother works for. Gothic horror meets literary suspense, this novel showcases Lundrigan’s impressive talent for crafting a story that is propulsive yet measured, never giving up its mysteries too easily. Flawlessly captivating, this is the book I’ve been waiting to read all year.”
— Karma Brown, #1 bestselling author of Recipe for a Perfect Wife

“In AN UNTHINKABLE THING, Nicole Lundrigan goes deep behind the glittering curtain of a perfect family, skillfully revealing their darkest secrets one shocking layer at a time. Expertly paced, with a voice that’s both tender and innocent, this twisted suspense story’s jaw-dropping events kept me glued to the pages until the ultimate satisfying surprise. A must read.”
—Hannah Mary McKinnon, internationally bestselling author of You Will Remember Me

“I read An Unthinkable Thing with my heart in my throat. Nicole Lundrigan masterfully sets the stage with a nostalgic late-1950s backdrop, then ratchets up the tension as she slowly reveals that nothing is quite what it seems. This slow burn mystery builds to an inferno that will keep readers riveted until the final, satisfying page. Five enthusiastic stars!”
—Nicole Baart, bestselling author of Everything We Didn’t Say