Myfanwy started out subbing in a Saigon newsroom before enrolling in RMIT's Prof Writing & Editing course where she grew her debut novel The Rainy Season, shortlisted for The Melbourne Prize for Literature's Best Writing Award 2010. Myfanwy’s short works have appeared in numerous journals and anthologies including How We Met, Readings and Writings and New Australian Stories 2. Her foray into non-fiction with Spiri Tsintziras, the bestselling Parlour Games for Modern Families, was awarded ABIA Book of the Year for Older Children 2010. Myfanwy's second novel, LEAP, published by Allen & Unwin in 2015, was long-listed for the Voss Literary Prize and shortlisted for the 2016 Miles Franklin Literary Award.
She lives by a creek in Melbourne with her human and non-human family.