offers a study of the works by Arthur Machen (1863-1947), the Welsh writer who has attracted a cult following for decades, especially among fans and scholars of weird fiction and Gothic studies. These essays take readers into different areas and address several topics in Machen's literary production: the literary, the artistic, the scientific, the religious, the socio-cultural, and the personal. The twelve chapters constituting the volume examine the representation of human beings in the writer's works and their relationship with the surrounding environment, whether it is the omnipresent London or the mysterious, menacing nature. The contributors also interpret Machen's writings through a series of disciplines and academic theories that were contemporary to the writer (such as paleontology and medicine) and demonstrate how he was influenced by the scientific discourses of his time and reproduced them in his works. The last section of the volume considers Machen's interest in the occult and mysticism and the religious themes present in many of his works.