Fernando Pessoa's passion for the detective genre is well documented in his writings: "One of the few intellectual diversions that persists in what remains of humanity's intellectual life is the reading of detective novels. Among the inestimable and small number of happy hours that Life allows me to spend, I consider the best year to be the one that allows me to spend hours engrossed, head and heart, in the readings of Conan Doyle or Arthur Morrison. Perhaps it is a source of surprise, not that these are my favorite and bedside authors, but that I confess that they are." For readers who share the Portuguese writer's love of the detective genre, this edition collects all of Pessoa's detective novels, written throughout his life and which he himself compiled under the title Quaresma, Decipherer.