Lisa Walker writes novels for adults and young adults. She has also written an ABC Radio National play and been published in the Age, Griffith Review, Big Issue and the Review of Australian Fiction. Her recent novels include a young adult coming-of-age story, Paris Syndrome (HarperCollins, 2018), and a climate change comedy, Melt (Lacuna, 2018). She has worked in environmental communication and as a wilderness guide, and recently spent six months in a Kmart tent in outback Australia. Lisa lives, surfs and writes on the north coast of New South Wales. The Girl with the Gold Bikini, her sixth novel, introduced teen PI Olivia Grace. Trouble is my Business is the second Olivia Grace novel.