Seraina Kobler, born in Locarno in 1982, studied linguistic and cultural studies before working as a journalist for publications including the Neue Zürcher Zeitung. In 2020 she published her debut novel, Regenschatten. Her first Zurich-based crime novel featuring officer Rosa Zambrano, Deep Dark Blue, spent months on the Swiss bestseller lists. Seraina lives with her family, and works, in Zurich and Lausanne.

Alexandra Roesch is a bicultural, bilingual freelance translator based in Frankfurt, Germany. An experienced translator of fiction and nonfiction, she has an MA in translation from the University of Bristol and was longlisted for the 2018 Helen & Kurt Wolff Translator's Prize.