How & Why I Created Sherilyn Chastain

Despite being a supporting character in my novel The Last Days Of Jack Sparks, Sherilyn Chastain seems to have a struck a chord with readers. She certainly did with me, and I enjoyed writing her very much.This will be a spoiler-free piece, by the way, in case you’ve – gasp – yet to read the novel.

An Australian-French combat magician with a foul mouth and a possible sex addiction, Sherilyn was created to serve the story in three ways:

1) I needed someone to question Jack’s dogged cynicism over the supernatural. Obviously, Jack’s flatmate Bex does this to a certain extent too, but Sherilyn’s knowledge of the arcane world allows her to go much deeper and really get under Jack’s skin. Which is why they argue like cats and dogs.

2) I needed someone to explain a fair bit of mysterious, supernatural stuff – especially later in the novel. Come the final third of the story, Sherilyn essentially becomes the Doctor in Doctor Who. Jack and Bex become her companions, asking what the hell is going on. Doctor-esque characters are ever so handy in stories in which bizarre conceptual stuff is going on.

3) I wanted a fun, colourful character who could be funny and dark at the same time.

So that’s why Sherilyn was created. What about the how?

What with knowing nothing about combat magic, I turned to my excellent friend Cat Vincent, a retired combat magician. Yes, yes, combat magicians are actually a thing in the real world. So I got Cat on Skype and interviewed him for around an hour. Because I knew the basic shape of the plot at that stage, I was able to ask him specific things that I needed to know. At times, I also asked him whether certain things would make sense within the magical world. Magical logic, if you will… or even if you won’t.

When writing Sherilyn, I made good use of Cat’s words. In fact, I quite often literally had his words coming out of her mouth. As a result, there is the occasional moment where I actually don’t understand what she’s talking about, but it sounds awesome and that’s all that matters at the time.

While Sherilyn is Aussie-French, she speaks with an overwhelmingly Aussie accent, and so I turned to another excellent friend, Dijana Capan, to make sure she would sound suitably Down Underly. This was mainly a matter of asking Dijana to supply the odd Aussie-specific phrase (“Get a dog up ya!”, for instance) or checking that I hadn’t made any phrases up myself.

So that’s Sherilyn Chastain. You know... beyond all that research, the more I look back at this powerful person, the more she does have the sense of a female Doctor about her. The way she’ll sweep into any given room and take control, and have a seemingly endless supply of magical ghost-hunting gadgetry, such an aerosol spray can of St John’s Root. So, yeah, Doctor Who probably smuggled itself into my work there. Certainly wouldn’t have been the first time and it won’t be the last…

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The Last Days Of Jack Sparks: Amazon US | Amazon UK | Amazon Canada

And here's the Jack Sparks page on my website.