Lykke made her literary debut in 2010 with the short story collection Orgien, og andre fortellinger. She followed up with the novel Oppløsningstendenser in 2013. Her novel Nei og atter nei, a family drama from 2016, was characterized as her literary breakthrough.[2][3]
Lykke's literary themes includes elements of dark satire mixed with humour and tragedy.[2] Her novel Full spredning from 2019, earned her the Brage Prize, and became a bestseller in Norway.[4][5] Subtitled "En legeroman" (A doctor's novel), the principal character "Elin", who is a physician and has been married to "Axel" for two decades, finds everything turned upside down when her ex "Bjørn" appears on Facebook.[6] She moves into her doctor's office in an absurd cohabitation with the plastic skeleton "Tore", with whom she has unpleasant dialogues. Thematics in the novel include infidelity, dissolution of marriage, and decadence of the middle class. As of 2023, the novel had been translated into 18 languages. A theatre adaptation was staged at Nationaltheatret in 2021.[2]
The novel Vi er ikke her for å ha det morsomt from 2022 explores the Norwegian middle class, and also contains satiric comments on so-called reality literature.[2]
