Enid Blyton and Agatha Christie were the most successful British women writers of their time. Christie and Blyton were contemporaries, living and writing in the United Kingdom during the first half of the twentieth century. This study takes into consideration these similarities in its examination of the depiction of dominant discourses in relation to emergent, alternative and oppositional discourses in their writing. This thesis suggests that while Enid Blyton and Agatha Christie offer alternatives to the dominant patriarchal discourses of the British Empire in the first half of the twentieth century, they show allegiance, too, to the dominant discourses of their time. Specific consideration is given to the portrayal of discourses concerned with gender, feminism, classism, British colonialism, racism, and xenophobia in their writing. The work of Enid Blyton and Agatha Christie was extremely popular in their time and still is today. Their important contribution to popular literature in England in the early twentieth century justifies a study of a selection of their work in relation to detective fiction and children’s literature as well as to studies of social history that include the investigation of how dominant discourse is both endorsed and challenged.