[1] Fletcher was born in Birmingham and studied Creative Writing at the University of East Anglia.
[1] Her first novel, Eve Green, was published in 2004 by Fourth Estate, an imprint of HarperCollins.
Her novel Witch Light won the Saint Maur en Poche Award 2013 in France.
In 2022, Fletcher signed a two-book contract with Transworld, an imprint of Penguin Random House.
She has also worked as a Fellow of the Royal Literary Fund at the University of Worcester (2016–18 and 2020-23).