Sarah Rees Brennan is a fantasy author who lives in Dublin.

She obtained a Creative Writing MA from Kingston University in London and worked in a library in Surrey, before moving to Dublin.

A writer since the age of five, she wrote her first novel, The Demon's Lexicon, while studying for her Creative Writing MA. The publishing house Simon & Schuster obtained a three-book contract deal with her which involved an undisclosed six-figure sum.

Since then she has written and collaborated on many bestselling and award-nominated works, including In Other Lands and tie-in novels for Netflix shows including Sabrina the Teenage Witch, and Fate - The Winx Saga.

She is a cancer survivor, having been diagnosed with stage 4 Hodgkin lymphoma in 2017.