Blackadder's first novel,
After the Party (2005), appeared on the
Australian Book Review's 2010 list of favourite Australian novels of the 21st century. Her second, novel, ''The Raven's Heart: A Story of a Quest, a Castle and Mary Queen of Scots
(2011), is a work of historical fiction written partly because she decided to investigate the origins of the Blackadder surname, having been repeatedly asked if she was related to Rowan Atkinson (who created and starred in the BBC comedy series Blackadder''). The Raven's Heart won the
Benjamin Franklin House annual literary prize and
Golden Crown Literary Society awards for 2013, and an
Independent Publisher Book Awards Historical Fiction bronze medal. In 2011, Blackadder received an Australian Antarctic Arts Fellowship to visit Davis Station (on
Ingrid Christensen Land in Antarctica) for six weeks. Using her research there, she explored the issue of using historical figures in fiction to obtain her Doctorate in Creative Arts, awarded in 2014, from
Western Sydney University. From this came her historical novel,
Chasing the Light (2013), about
Ingrid Christensen, the first woman to see Antarctica, and the women who accompanied her. The trip also resulted in a children's book called
Stay: The Last Dog in Antarctica (2013), featuring Stay, a fibreglass
guide dog that kept Blackadder company during one her field trips. In 2016 Blackadder was instrumental in founding StoryBoard, a mobile writing program for children under the banner of the
Byron Bay Writers Festival. At the time of her death in 2020, the StoryBoard bus had received about 27,000 visitors. Having previously shelved a manuscript about her childhood experiences when her two-year-old sister drowned in her family's backyard swimming pool, she eventually wrote the novel
Sixty Seconds (2017) to explore the grief and guilt felt by a family in similar circumstances, as well as the issue of personal responsibility and the possible criminal repercussions of such accidents. The book was published in the United States in 2019 under the title
In the Blink of an Eye. In 2018, Blackadder again was a successful recipient of an Australian Antarctic Arts Fellowship, this time won jointly with screenwriter Jane Allen. The two writers visited
Mawson Station from November 2018 to February 2019, during which time they prepared a draft of an Antarctic adventure novel for young readers and the structure for the first season of a television series about life on an Antarctic research station. These two works were still in development at the time of Blackadder's death. As a freelance journalist, Blackadder published many articles, including "The first woman and the last dog in Antarctica", which won the 2012 Guy Morrison Prize for Literary Journalism from the Australasian Association of Writing Programs. She also wrote extensively about
agriculture and sustainability,
deliberative democracy, and the
environment. She was actively involved in
Landcare Australia, an environmental
not-for-profit organisation.
Frankie, co-written with Laura Bloom, was shortlisted for the 2019
Children's Peace Literature Award. == Books ==