A group of three mischievous schoolboys navigates the rigid social hierarchy and disciplinary environment of a Victorian military preparatory school. Stalky, McTurk, and Beetle operate on the fringes of the United Services College, employing wit and subversion to outmaneuver both their peers and the faculty. Their objective is to maintain their autonomy and personal code of conduct within an institution designed to mold them for imperial service. The narrative framework consists of a series of interconnected short stories that track the boys' development from adolescence into their eventual roles in the wider world of the British Empire.

Discussion often centers on the complex portrayal of the British imperial mindset and how the school environment serves as a microcosm for later professional life. Readers frequently highlight the sharp, often cynical humor that distinguishes these stories from more sentimental school narratives of the era. Critics often examine the balance between the boys' rebellious antics and the underlying seriousness of their eventual destinies in the army or colonial administration. The text is noted for its dense, idiomatic prose which requires careful attention to historical context. Many readers find the collection provides a revealing look at the formative experiences that shaped the author's own worldview.