@quietpurplehaze My wife is the detective fiction fan, she speaks seven languages so her library is quite mixed. For my part, I liked the two books by Domingo Vilar, Death on a Galician Shore and Water Blue Eyes. They are quite evocative of that area, and the first is often quite funny. Available secondhand in the UK at reasonable prices from https://www.worldofbooks.com.
Thanks! In awe of your wife - I can count just 4, only 2 (including English!) fluently!!!!