Caroline de Costa is a Cairns-based doctor and professor at James Cook University who has published numerous healthcare books for women. Since 2015 she has also published three novels in the Detective Cass Diamond crime-fiction series; all are set in Cairns. The first, Double Madness, was shortlisted for the Davitt Awards of Sisters-in-Crime in 2016. Caroline’s short story Screwed won the Kerry Greenwood Award of the 2019 Sisters-in-Crime Scarlet Stiletto award, and two other stories were highly commended in the 2020 Scarlet Stiletto awards.