A grand castle, a glass of Irish whiskey, a good book by the fire... and a rather mysterious murder?

Historic Inishmore Castle is opening its doors for the first time, hosting a charming weekend of whiskey tasting and soda bread baking. Sisters Mercy and Lizzie McCarthy are badly in need of a break, but their relaxing trip takes a decidedly unrestful turn when Mercy finds fellow guest Father Brennen slumped over the desk in the library... Did he have one glass too many or did someone want him dead?

Even more curiously, Mercy swiftly learns that the priest was no priest at all. So why was he searching through dusty old journals? Can the legend of Inishmore's lost treasure possibly be true?

Mercy's suspicions of foul play are confirmed when another of their party is found drowned in the lake at the edge of the manor's estate. It can't be a coincidence! Someone in this idyllic Irish castle is up to no good and Mercy is determined to find out who's behind it, accompanied by her reluctant fellow sleuth and beloved dog Mr. Poe.

With a host of frightened guests and worried staff, and a storm closing in, Mercy soon has more suspects than bedrooms in the castle. Could it be the unconvincing nun, the busybody birdwatcher, or are the owners hiding something sinister? When Mercy realises there are secret passages in the walls, she thinks she might have cracked the case... but will she track the killer down, or will Inishmore be her resting place forever more?

A completely delightful Irish cozy mystery, full of warmth and wit. Fans of Agatha Christie, Carlene O'Connor and Faith Martin will love meeting Mercy McCarthy!

See what readers are saying about the Mercy McCarthy series:

"Outstanding! I am absolutely loving the main characters!... I ended up staying up until the wee hours of the morning to finish as I just couldn't put it down... this series is sure to fill your cozy mystery loving needs!" Goodreads reviewer, ⭐️⭐️⭐️⭐️⭐️

"Excellent!!!... one of the best mystery novels I read in 2024... Definitely looking forward to the next book!!" Goodreads reviewer, ⭐️⭐️⭐️⭐️⭐️

"Wonderful... I really LOVED THIS BOOK!... I couldn't put it down... I absolutely loved." Broadbeansbooks, ⭐️⭐️⭐️⭐️⭐️

"I had an amazing time!... OMG did I love that bookstore!!!... had me laughing out loud... I can't wait to see what's going to come next for Lizzie and Mercy!" Daniereads87, ⭐️⭐️⭐️⭐️⭐️

"Perfect cozy mystery... I was in a horrible reading slump, and this novel helped me to turn that around... 5 out of 5!!!" Goodreads reviewer, ⭐️⭐️⭐️⭐️⭐️

"Magical... The setting swooped me up and dropped me right into the middle of the story... makes me imagine a gray day with light rain, a stoked fire, a blanket, a cup of coffee (!!), and curling up to read." Goodreads reviewer, ⭐️⭐️⭐️⭐️⭐️

"Delightful... thrilling... keeps you hooked... I found myself glued to the book... cannot wait for the next!" Thebookdecoder, ⭐️⭐️⭐️⭐️⭐️

"Wonderful... I was instantly transported to Shamrock Cove... I gobbled up this book. I loved every minute of it." Goodreads reviewer, ⭐️⭐️⭐️⭐️⭐️