Author Hannah Mary McKinnon / Holly Cassidy's Newsletter
Hannah Mary McKinnonHannah Mary McKinnon is a thriller author who also writes holiday romantic-comedies under the pseudonym Holly Cassidy. This is her (ir)regular newsletter about what's going on in her writing world.
| Platform |  | Pricing | Only free issues | Publishes | Infrequently |
|---|---|---|---|---|---|
| Issues | 17 | Founded | 3 years ago | Last Issue | 6 months ago |
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hannahmarymckinnon.substack.comLatest Issues
HO-HO-HOLIDAY GIVEAWAY!
“I want to read a long newsletter,” said nobody in December, ever. This one’s really fast. Honest. So keep going to find out how you can enter to win this lovely loot:
Kerry Schafer & Kerry Anne King, Patricia Sands, Jennifer Moorma...
TWO PARTY INVITATIONS
This is a short but sweet newsletter as we prepare for the release my 11th novel, the thriller A KILLER MOTIVE, on September 9. We’re having two book launches, and I’d love for you to join us at one or the other, or both :-)
ONLINE LAU...
A KILLER MOTIVE: Cover reveal!
WE HAVE A COVER!
A Killer Motive, my 11th book, publishes on September 9, 2025. I think HarperCollins’ art department outdid themselves yet again! Ready?
Ta-daaaaaaa!
Hope you love it as much as I do!
Why a lighthouse, you ask? Becau...
WINTER IS HERE!
Hope you all had a wonderful holiday season and a great start to 2025! It’s freezing outside but it’s warm and snuggly in my writing cave. I think I’ll stay here until spring. In the meantime, here’s what’s going on in my writing world.
*...
AUTUMN NEWS AND A BOOK LAUNCH INVITATION!
It’s been a whirlwind of trips and events these past few months. I visited family in Switzerland, attended Toronto’s crime & mystery festival MOTIVE, my thriller ONLY ONE SURVIVES published in July, I stayed at a brilliant Cabinscape tiny h...
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Authors
The writers behind this newsletter.
Internationally bestselling author Hannah Mary McKinnon’s latest thriller is A Killer Motive, and she writes romantic comedies as Holly Cassidy, the second of which is The Christmas Countdown. She lives with her family in Ontario, Canada.
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