Margo has been publishing fiction for nearly thirty years. After an apprenticeship in teen romance, junior fiction-with-a-dash-of-fantasy and gritty-realist YA, she completed her move into fantasy writing by attending the Clarion West workshop in 1999. The stories she wrote there formed much of her first collection, White Time.
But it was her second, Black Juice, containing the story “Singing My Sister Down”, that attracted wide attention. It won a Victorian Premier’s Award, two Aurealis and two Ditmar awards, two World Fantasy Awards (for Best Short Story and Best Collection), was a Michael L Printz Honor Book and made the Tiptree honor list, and was shortlisted in two other premier’s awards, the Los Angeles Times Book Prize and the Hugo, Nebula, Sturgeon, Stoker, International Horror Guild and Seiun awards.
Further collections followed; Red Spikes, Yellowcake, Cracklescape, and two mostly-reprints compilations, Singing My Sister Down and Other Stories, and Phantom Limbs.
Margo’s World Fantasy Award-winning novel Tender Morsels, a reworking of the Grimm brothers’ “Snow White and Rose Red”, came out in 2008.
She published a novella about selkies, “Sea Hearts”, in Coeur de Lion’s X6 novellanthology in 2009, which won her a fourth World Fantasy Award. She later developed the story into the novel Sea Hearts, published as The Brides of Rollrock Island in the US and the UK.
From 2015 to 2018 she published, in collaboration with Scott Westerfeld and Deborah Biancotti, the New York Times-bestselling YA fantasy action adventure series Zeroes (Zeroes, Swarm, and Nexus).
Margo’s short stories have been widely anthologized and her work has been translated into sixteen languages. She has served on several significant Australian book award judging panels, and on the Literature Board of the Australia Council for the Arts. And she has taught extensively, including three times at the Clarion South workshop, twice at Clarion West and once at Clarion UCSD.
Margo lives in Sydney, Australia.