Melanie Price works in London publishing but chooses to go it alone in her novel debut

Price returned to London with two book plots in mind, both psychological thrillers, a genre that she studied at university and that happens to be Amazon's best-read in e-books.

Over two years - on weekends and at nights after work - she wrote two novels, My Perfect Family, set in Sydney and told through a young Australian female protagonist and The Mother-in-Law's Secret, set in London and told through another Australian woman but also through a second character - her British mother-in-law.

"The classic, write what you know," she said.