About Hannah Mary McKinnon

Hannah was born in the UK, grew up in Switzerland and moved to Canada in 2010. After a successful career in recruitment, she quit the corporate world in favor of writing. Her first novel was rom-com, Time After Time (2016), after which Hannah switched to the darker side of suspense with The Neighbors (2018), Her Secret Son (2019) and Sister Dear (2020). She lives in Oakville, Ontario, with her husband and three sons, and is delighted by her twenty-second commute.

Visit Hannah’s website.

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Sister Dear will be released in May 2020. From the publisher:

When Eleanor Hardwicke’s beloved father dies, her world is further shattered by a gut-wrenching secret: the man she’s grieving isn’t really her dad. Eleanor was the product of an affair and her biological father is still out there, living blissfully with the family he chose. With her personal life spiraling, a desperate Eleanor seeks him out, leading her to uncover another branch on her family tree—an infuriatingly enviable half sister.

Perfectly perfect Victoria has everything Eleanor could ever dream of. Loving childhood, luxury home, devoted husband. All of it stolen from Eleanor, who plans to take it back. After all, good sisters are supposed to share. And quiet little Eleanor has been waiting far too long for her turn to play.

To learn more about Hannah’s other books, visit her website.


“Loss, love, revenge, buried secrets and greed add up to make Sister Dear an electrifying read. If you think you know where this story is headed, watch out. Hannah Mary McKinnon has a few tricks up her sleeve. A must read!”

Mary Kubica, author of The Good Girl and The Other Mrs.

“A brilliant, breathless thriller that crackles with suspense and heart-thumping twists. I finished this absorbing, creepy and downright sinister novel in the wee hours of the night. And the ending…perfection!”

Heather Gudenkauf, author of The Weight of Silence and Before She Was Found

“A grieving daughter, a jealous sister—nothing is as it seems in Hannah Mary McKinnon’s latest slow-burn suspense, Sister Dear. This one creeps up the back of your neck then explodes into an ending that I guarantee you won’t soon forget…and will leave you begging for a sequel.”

Kimberly Belle, author of The Marriage Lie and Dear Wife