Force Unleashed II (2010) The Books of the Cataclysm The Crooked Letter (2004) - Winner, Best Novel, 2004 Ditmar Award & Winner, Best Fantasy Novel, 2004 Aurealis Award The Blood Debt (2005) The Hanging Mountains (2005) The Devoured Earth (2006) Geodesica (with Shane Dix) Ascent (2005) - Winner, Best Novel, 2005 Ditmar Award Descent (2006) The Broken Land The Changeling (2008) - Shortlisted for Best Young Adult Novel, and Best Children's Novel, in the 2008 Aurealis Award. The Dust Devils (2008) - Shortlisted for the Best Children's Novel, in the 2008 Aurealis Award. The Scarecrow (2009) Astropolis Saturn Returns (2007) - Winner, Best Novel, 2008 Ditmar Award Cenotaxis (2007) - book 1.5, novella Earth Ascendant (2008) The Grand Conjunction (2009) The Fixers Castle of the Zombies (2010) Planet of the Cyborgs (2010) Last of the Vampires (2010) Invasion of the Weird (2010) Troubletwisters series (with Garth Nix) The Magic (2011) (aka Troubletwisters in Australia) The Monster (2012) The Mystery (2013) (aka Mystery of the Golden Card in Australia) The Missing (2014) (aka Missing, Presumed Evil in Australia and the UK) Twinmaker Series Twinmaker: Jump (2013) (aka Twinmaker outside of Australia) Twinmaker: Crash (2014) (aka Crashland outside of Australia) Twinmaker: Fall (2015) (aka Hollowgirl outside of Australia) Others The Unknown Soldier: Book One of the Cogal (1995) - (with Shane Dix) Re-imagined and rewritten as The Prodigal Sun Metal Fatigue (1996) - Winner, Best Science Fiction Novel, 1996 Aurealis Award The Resurrected Man (1998) - Winner, Best Long Fiction, 1999 Ditmar Award Spirit Animals Book 3: Blood Ties (2014) (with Garth Nix) Impossible Music (2019) Her Perilous Mansion (2021) - Shortlisted, 2021 Patricia Wrightson Prize for Children’s Literature Collections Doorways to Eternity (MirrorDanse Books, 1994) A View Before Dying (Ticonderoga Publications, 1998) New Adventures in Sci-Fi (Ticonderoga Publications, 1999) - Winner, Best Collected Work, 2000 Ditmar Award Light Bodies Falling (Altair Australia, 2007) Magic Dirt: The Best of Sean Williams (Ticonderoga Publications, 2008) - Winner, Best Collection, 2008 Aurealis Award Notable short stories "The Freezing of Sarah" (1997) in Bloodsongs #9 "Entre les Beaux Morts en Vie (Among the Beautiful Living Dead)" (1998) in Dreaming Down-Under (ed. Jack Dann, Janeen Webb) "Hunting Ground" (2003) in Southern Blood: New Australian Tales of the Supernatural (ed. Bill Congreve) "haikaiju" (2005) in Daikaiju! Giant Monster Tales (ed. Robert Hood, Robin Pen) "daihaiku" (2005) in Daikaiju! Giant Monster Tales (ed. Robert Hood, Robin Pen) "The