Fiona Erskine

Engineer. Writer. Swimmer.

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Katherine Boyle

Katherine Jones, nee Boyle, Lady Ranelagh (22 March 1615 – 3 December 1691)

Katherine was the seventh of fifteen children.

At nine years of age she was betrothed to Sapcott Beaumont and sent to live with her future in-laws. When Sapcott’s father died, the arrangement dissolved and at thirteen she was despatched back home.

She didn’t escape the bonds of matrimony, being married at fifteen to Arthur Jones, the future Viscount Ranelagh. He was a thoroughly bad lot and the marriage was not a happy one.

Katherine escaped with her four children to set up an independent life in London. She embarked on a voyage of scientific discovery, together with little brother Robert Boyle who came to live with her.

Theirs was

a lifelong intellectual partnership, where brother and sister shared medical remedies, promoted each other’s scientific ideas, and edited each other’s manuscripts.

Together, Katherine and Robert contributed to the founding of the Royal Society in 1662.

Wedding ring / Brass washer

Boyles law states that the pressure of a fixed amount of gas is inversely proportional to the volume at a constant temperature.

Volume decreases, pressure rises

In Phosphate Rocks a police inspector interviews retired shift foreman about the objects found beside a dead body in the ruins of an old factory.

The clock has moved on when the detective inspector returns to the interview room.

‘Any news?’ John asks. ‘Did you find him?’

‘We’re working on it,’ she says. ‘What about the other things? Anything else here linked to Fraser?’

John surveys the remaining objects and shakes his head.

‘Nope.’

She picks up a dull gold disc with a hole through the middle.

‘Anyone else who suddenly vanished?’ she asks.

Phosphate Rocks: A Death in Ten Objects is published by Sandstone Press and available to order here

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I swam 24km in 5 days. Hard work?

Try tuna canning, salt drying or sulphur mining...

https://fionaerskine.substack.com/p/sulphur-and-salt


Goodbye #egadiislands and thank you @swimtrek for an amazing week - 24 kilometres with wonderful guides, fellow swimmers and multicoloured fishes!


This week #PhosphateRocks e-book is only £0.99 in UK

Who doesn't love a story about a demolition gone wrong? @raine_clouds_writes @lesleykellyauthor 

https://www.amazon.co.uk/Phosphate-Rocks-Death-Ten-Objects-ebook/dp/B0CTRRXKNY

PS: The audio book narrated by @rain.goblin is pretty special too


A quarter of my sales this month were overseas for the very first time!

Massive thanks to all those fine Canadians for topping the list. Say Hi if you see this.

https://fionaerskine.com/


On my way to Harrogate today

https://open.substack.com/pub/fionaerskine/p/harrogate

Say hello if you'll be there


What makes the perfect handbag and how much is it worth?

https://fionaerskine.substack.com/p/the-perfect-handbag


https://fionaerskine.substack.com/p/i-have-some-news

Goodbye @oneworldpublications and thank you for everything - it was such an honour to be published by you and I loved working with the team.

Now, like #JaqSilver I'm going solo

Big thanks to @kidethic for my beautiful new covers


Such a treat to interview #TerryDeary about his first adult crime book #ActuallyImAMurderer (it’s great!) at @backofthebeyondbooks


Happy International Women in Engineering Day! 
Thanks to @Chem_Processing for highlighting #TheChemicalDetective!
 #INWED2025 #INWED25 
https://www.chemicalprocessing.com/voices/women-in-chemistry/podcast/55298245/celebrating-international-women-in-engineering-day


More canine readers in @forumbookscorbridge #winter #losingcontrol


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Oh @adrianmckinty - where have you been all my life? Loving Sean Duffy’s adventures read by Gerard Doyle

Huge thank you to every person and bookshop that's ordered Ravenglass and made it stonking success so far 😍

This gripping and powerful tale of gender-fluid Kit/Stella traversing the world in the 1700s is very relevant in today's climate!

Order here: https://share.google/i6inpiZ7vDgHK3mMh

Delighted to celebrate International Week of Happiness at Work with a 99p deal in UK. Jaq Silver has found the perfect job in Brazil. Or has she?

The Chemical Cocktail (Jaq Silver Thriller) eBook : Erskine, Fiona: : Kindle Store https://www.amazon.co.uk/Chemical-Cocktail-Silver-Thrillers-Book-ebook/dp/B0FG8X59MT

The Chemical Cocktail goes right back to Jaq’s childhood and can be read first - only £0.99

Trust me, you won’t regret reading this. Exquisite prose and a rollicking, propulsive, deeply moving story. @novelcarolyn is a fearless writer who wears her deep research so lightly that you are instantly immersed into the booming north of the 1720s

Trust me, you won’t regret reading this. Exquisite prose and a rollicking, propulsive, deeply moving story. @novelcarolyn is a fearless writer who wears her deep research so lightly that you are instantly immersed into the booming north of the 1720s
Northodox Press 📖 @northodoxpress

🚨PUBLICATION DAY🚨

Ravenglass is available everywhere now! A tender and powerful tale of a gender fluid character trying to make their way in the 1700s, we can't recommend this incredible adventure novel enough 🏳️‍🌈

Order yours here: https://share.google/bfWyYAWWNBHLr9rB6

I was today years old when I learned I’ve been eating my favourite biscuits all wrong

Chocolate digestives: How do you eat them? Choc side up or down? - CBBC Newsround https://www.bbc.com/newsround/articles/cvg7lnp19n0o

Ravenglass by @novelcarolyn is the most beautifully written exploration of how we once lived and worked and lived and loved and fought in the north. A cracking good read, I cannot recommend it strongly enough - a complete breath of fresh air.

Ravenglass  by @novelcarolyn is the most beautifully written exploration of how we once lived and worked and lived and loved and fought in the north. A cracking good read, I cannot recommend it strongly enough - a complete breath of fresh air.
Northodox Press 📖 @northodoxpress

🚨RELEASE WEEK🚨

One of the biggest and most ambitious Northodox books to date is out this Thursday!

Join Kit Ravenglass on his seafaring journey in this swashbuckling, gender fluid, historical fiction novel!

It is incredible 😍

Preorder now: https://share.google/9lT4pFxkL9DOMypUR

🚨RELEASE WEEK🚨

One of the biggest and most ambitious Northodox books to date is out this Thursday!

Join Kit Ravenglass on his seafaring journey in this swashbuckling, gender fluid, historical fiction novel!

It is incredible 😍

Preorder now: https://share.google/9lT4pFxkL9DOMypUR

Big and lusty! Spot on. #Ravenglass is my book of the year so far.
I'm so looking forward to talking with @novelcarolyn this week on her northern tour!
Who is coming along ?

Big and lusty! Spot on. #Ravenglass is my book of the year so far.
I'm so looking forward to talking with @novelcarolyn  this week on her northern tour!
Who is coming along ?
Carolyn Kirby @novelcarolyn

6 days till #RavenglassNovel goes live and the first press review is a "big and lusty" 9/10!!! 🤩😁Thank you @peterboroughtel 😍

Greetings to all my friends at @bloodyscotland! So sorry I won’t be there this year but research takes priority @SwimTrek

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