We’re excited to be giving away two copies of My Grandfather, the Master Detective by Masateru Konishi to our GrownUps members!
To be in the draw, simply make sure you’re a GrownUps member, signed up to our newsletter, and fill in your details at the bottom of the page.
Steeped in references to classic crime from Christie to Chesterton to Poe, this novel playfully nods to forebears of the genre, while also carrying the light-hearted, escapist hallmarks of cosy crime books which have recently captured readers’ imaginations.
There used to be a cafe called Mon Cheri at Nishi Waseda where members of the Waseda Mystery Club spent day after day frothing in excitement over the latest mystery novels, and now he and Kaede solve mysteries together . . .
As a lover of classic crime stories, it’s perhaps no surprise that twenty-seven-year-old schoolteacher Kaede encounters everyday mysteries more often than your average person. Solving them is another matter, though, and the person she always heads to for guidance is her beloved grandfather – who, despite having dementia, retains a keen sharpness of mind. From impossible locked-room murders to confounding missing person cases, the granddaughter and grandfather team ‘weave stories’ in master-and-apprentice fashion to get to the bottom of a variety of cases. All the while, a shadow slowly closes in on Kaede, posing a more insidious threat . . .
This novel’s charming characters and affectionate focus on relationships bring to mind heart-warming Japanese titles such as Before the Coffee Gets Cold.
Author Information
Masateru Konishi graduated from the Department of English and American Literature at Meiji University, and now works as a writer for TV and radio. He has previously written for the stage as well as a manga story; My Grandfather, the Master Detective is his debut novel. Partly based on his own experience of caring for his father with dementia, the book won the twenty-first edition of the prestigious ‘This Mystery is Amazing!’ Grand Prize. He is currently working on a sequel with an estimated first print run of 30,000 copies.
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Terms and conditions
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You must be a GrownUps member and subscribed to our newsletter to be eligible to enter.
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The competition closes on 28th January 2026. Winners will be notified via email by 29th January 2026.
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It is your responsibility to provide a correct New Zealand postal address for prize delivery. GrownUps is not responsible for prizes sent to incorrect addresses.
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Winners will be drawn at random by the GrownUps administration team.
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GrownUps employees and their immediate families are not eligible to enter.
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By entering, you agree to GrownUps using your name on social media as a winner of the competition.
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One entry per household.
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The prize is non-transferable and cannot be exchanged for cash or other items.
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You must reside in New Zealand, as the prize can only be delivered within New Zealand.
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You must be over 50 years of age to enter. Please ensure your membership details are up to date in your dashboard.
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