There are 7 books in the Hat Shop Mysteries series. The newest book is Fatal Fascinator which came out in 2023.

An all-new series from New York Times bestselling author Jenn McKinlay

Not only is Scarlett Parker’s love life in the loo—as her British cousin Vivian Tremont would say—it’s also gone viral with an embarrassing video. So when Viv suggests Scarlett leave Florida to lay low in London, she hops on…
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2
Death of a Mad Hatter

Book cover of Death of a Mad Hatter
ONE IN A MILLINER

Scarlett Parker and her British cousin, Vivian Tremont, are hard at work at Mim’s Whims—their ladies’ hat shop on London’s chic Portobello Road—to create hats for an Alice in Wonderland themed afternoon tea, a fund-raiser for a local children’s hospital. It seems like a wonderfully whimsical…

3
At the Drop of a Hat

Book cover of At the Drop of a Hat
From the New York Times bestselling author of the Library Lover’s Mysteries and Death of a Mad Hatter comes a tale of hat shop owners who put a cap on crime.
 
MURDER CAN BE SO OLD HAT
 
Cousins Scarlett Parker and Vivian Tremont’s fashionable London hat shop, Mim’s Whims, is…

4
Copy Cap Murder

Book cover of Copy Cap Murder
The New York Times bestselling author of At the Drop of a Hatreturns to her London hat shop with a fresh tale of milliners and murder.

For Scarlett Parker, part of the fun of living in London is celebrating the British holidays, and she’s excited to share her first Bonfire…

5
Assault and Beret

Book cover of Assault and Beret
Allons-y to Paris for more hats and homicide from the New York Times bestselling author of Copy Cap Murder!

London milliner Vivian Tremont and her American cousin and partner, Scarlett Parker, tip their caps to their beloved shop on Portobello Road in Notting Hill and set off for Paris, where…

6
Buried to the Brim

Book cover of Buried to the Brim
New York Times bestselling author Jenn McKinlay's beloved Hat Shop duo Scarlett Parker and Vivian Tremont return to don their sleuthing caps and solve a murder that's death in show.

London's most refined canines and their humans are gearing up for the Pets and Wellness Society's annual dog show--and Betty…

7
Fatal Fascinator

Book cover of Fatal Fascinator
Hip hip beret! Hatmakers Scarlett Parker and Vivian Tremont return and must collar a killer when a castle wedding goes awry in New York Times bestselling author Jenn McKinlay’s new Hat Shop Mystery.

It’s wedding season and Viv’s longtime frenemy Piper May is getting married. She convinces Viv and Scarlett…