The first edition sold very poorly and the novel suffered from a period of critical neglect, especially in the nineteenth century. However, since the latter part of the twentieth century it has won greater critical interest and attention. It was praised by André Gide in an introduction to the 1947 reissue and described by the critic Walter Allen as 'the most convincing representation of the power of evil in our literature'. It has also been seen as a study of religious fanaticism through its deeply critical portrait of the Calvinist concept of predestination. It is written in English, with some sections of Scots that appear in dialogue.