【The Exotic Time Machine】

Cara Delevingne clearly knows how to multi-task.

As well as modelling,The Exotic Time Machine designing fashion collections and appearing in films, Delevingne has also somehow found the time to write -- and soon publish -- a whole damn novel.

The British model took to social media on Tuesday afternoon to tease the release of Mirror Mirror-- a "twisty coming-of-age novel about friendship and betrayal".

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"I love these characters so much, I love what they stand for, what this story represents," wrote Delevingne on Instagram. "The process of putting this novel together has been life changing and something really close to my heart!!"

Here's the full novel blurb on Amazon:

"Friend. Lover. Victim. Betrayer.When you look in the mirror, what do you see?

Sixteen-year-old friends Red, Leo, Naima and Rose are like anyone their age: figuring out who they are and trying to navigate the minefield of school and relationships. Life isn't perfect, but they're united by their love of music and excited about what the future holds for their band.

That is until Naima dies in tragic circumstances, leaving behind only one word. 'Sorry'.

What awful truth was she hiding? What dark secret was lurking behind her seemingly sunny persona? And how did Red, the self-styled protector of the group, fail to spot the warning signs?

While Rose turns to wild partying and Leo is shrouded by dark moods, Red sets out to uncover the truth and find out what -- or perhaps who -- was responsible for Naima's death.

It's a journey that will cause Red's world to crumble, exposing the dark and dangerous truth behind the fragile surface of their existence. Nothing will ever be the same again, because once a mirror is shattered, it can't be fixed."

Mirror Mirror (Trapeze) will be published 5 October 2017. It's currently available to pre-order on Amazon.