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The Boy on the Dock: A Psychological Thriller
"McCarthy's The Boy on the Dock is like Shari Lapena's The Couple Next Door meets Lisa Jewell's Then She Was Gone-psychological tension from start to finish!" -Cam Torrens, bestselling author of the Tyler Zahn mystery/suspense series
She came to the lake to grieve alone. What she finds is a terrified boy no one else sees.
Haunted by loss, graphic designer Julie retreats to an isolated lake cabin, desperate for solitude and escape. But grief doesn't stay quiet, and neither does the past. When Julie glimpses a frightened boy on a nearby dock, everything she thought she understood about her reality begins to fracture.
Everyone insists the boy doesn't exist. Her ex-husband thinks she's imagining things. The police are disbelieving. Even Mark, her enigmatic neighbor who seems too eager to help, is unsure. Is she losing her mind, or is someone trying to make her believe she is?
When events turn violent and the truth circles ever closer, Julie considers a harrowing possibility. Not only could the boy be real, but he could be in serious danger—and she might be the only one who can help him.
As her grip on reality frays, Julie must summon every ounce of strength to unravel the mystery and confront the trauma holding her underwater for far too long-because finding and saving the boy might be her only chance to save herself.
A chilling, emotional thriller about grief, obsession, and resilience.
- LanguageEnglish
- Publication dateApril 30 2026
- File size1.4 MB
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From the Publisher
Product description
Review
Maxy Book Awards WINNER - Best Thriller
"Deliciously eerie, The Boy on the Dock is about the danger only one woman can see, and the doubt that may destroy her. Highly recommended." -Best Thrillers
"McCarthy's The Boy on the Dock is like Shari Lapena's The Couple Next Door meets Lisa Jewell's Then She Was Gone-psychological tension from start to finish!" -Cam Torrens, bestselling author of the Tyler Zahn mystery/suspense series
About the Author
Product details
- ASIN : B0G8LNM8HW
- Publisher : Black Rose Writing
- Accessibility : Learn more
- Publication date : April 30 2026
- Language : English
- File size : 1.4 MB
- Screen Reader : Supported
- Enhanced typesetting : Enabled
- X-Ray : Not Enabled
- Word Wise : Enabled
- Print length : 257 pages
- Page Flip : Enabled
- Best Sellers Rank: #394,568 in Kindle Store (See Top 100 in Kindle Store)
- #7,709 in Psychological Thrillers (Books)
- #7,829 in Kidnapping Thrillers
- #7,976 in Psychological Thrillers (Kindle Store)
- Customer Reviews:
About the author

As an author of mystery suspense novels, A.J. McCarthy is always on the lookout for new ideas. Her friends and family are cautious, concerned they may become a victim in her next novel. Those who are more adventurous offer up ideas and are willing to sacrifice certain family members for the cause. A.J. bides her time, waiting for the right moment and the perfect victim. She hides behind a quiet, accountant-like façade, and few know what she’s really thinking.
She’s a member of Crime Writers of Canada, Sisters in Crime, and International Thriller Writers. When she isn’t writing, chances are she is reading.
Customer reviews
Top reviews from Canada
- 5 out of 5 stars
Great read!
Reviewed in Canada on May 5, 2026What a great read! A.J. Thoroughly enjoyed from cover to cover! I loved how the plot unfolded and the characters were so well-developed. Can't wait for your next book!
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Good Read!
Reviewed in Canada on June 2, 2026A book that grabs you and doesn't let go. A great villain and maybe another one. Or maybe not...or maybe... This is the author's first "psychological" mystery and I am looking forward to more. Also loved the setting, easy to visualize as the action progressed.
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CancelReport - 5 out of 5 stars
This book is so good!
Reviewed in Canada on May 27, 2026This is an amazing book that captivated my curiosity and interest right from the start! I could hardly put it down and read it in two days! Highly recommend it to anyone who loves a good mystery and thriller book. I am enjoying this authors books a lot and have been binging them all! This is a five star read, you won’t be disappointed!
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CancelReport - 5 out of 5 stars
Great read!
Reviewed in Canada on April 30, 2026Broken and grieving the tragic loss of her daughter, Julie can't get past the accident of three years ago. Hoping for peace and healing, she rents a cabin on a small lake where she returns to the water and kayaking, a previous source of joy. One morning, she spies a boy on a dock. The fearful look on his face as he flees sets in motion a compelling chain of events that lead Julie, her neighbor, her ex, and the reader to wonder if the boy was real or a figment of her imagination. From the opening page, I was hooked by this psychological thriller, rife with foreboding, complex characters, and vivid detail.
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Top reviews from other countries
Luv2read5 out of 5 starsExciting and engaging story
Reviewed in the United States on April 30, 2026Three years after the drowning death of her daughter, Abby, Julie goes to a lake to get space and heal. When she sees a young boy on a dock she panics he’s going to drown, but before she can help him he disappears. Obsessed with him triggering the loss of her daughter she sets out to contact and inform his parents he’s in a dangerous place being alone on the dock. This sets off a cascade of cat and mouse involving neighbor Mark, an architect who starts out helpful then throws her info confusion, same with Peller another neighbor who lost a son, but when chasing down clues and finding physical evidence dead ends, she wonders if she imagined the boy. Her ex, Keith, and brother phone questioning if her actions are grief related causing her to wonder if she’s losing her mind. Right along with her rollercoastering between self-doubt and confidence the boy is real, the reader has no clue—the plot thick with mystery right down to the surprising ending. The brilliance in this author’s writing is her ability to astutely keep the reader guessing right along with the protagonist. As she meets with hostility, accidents, and assumptions if only she’d take her medication she’d lose the fixations on the boy on the dock, I’m battling along with her as to her sanity, or not. This is a gut-wrenching, emotional read, where tension screams from the pages as reality comes into perspective. Beyond the last page, this story hauntingly lingers, the excellent writing and scene depiction, the doubt woven into every twist and turn appropriate to the story, and the graphic descriptions.
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Kindle Customer4 out of 5 starsGripping
Reviewed in the United States on July 16, 2026Kept me in a tight grip! I was never quite sure what's going on. Will be perusing her other books.
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Doublemom3 out of 5 starsIt had potential...
Reviewed in the United States on June 21, 2026But the author didn't develop the relationships. Rather than letting the story show the development, she just explained everything. If the characters were in high school (immature), it might explain some of the impulsivity, but they were supposedly adults. It became tedious as Julie jumped back and forth, going on and on about how she just knew there was a child. Let the story SHOW it. Stop explaining it all to the reader.
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Gary5 out of 5 starsAmazing thriller. Best read this year.
Reviewed in the United States on May 17, 2026Great book that was just awarded the Maxi award!
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