Gavin McCrea’s ‘Rousseau’s Lost Children’ Explores Desire, Friendship, and Moral Complexity

Irish author Gavin McCrea’s new novel, Rousseau’s Lost Children, published by John Murray in February 2026, delves into the life and ideas of Jean-Jacques Rousseau through an unconventional epistolary structure. The book, set in both 18th-century Paris and the present day, explores themes of longing, male friendship, and moral ambiguity, drawing heavily on McCrea’s own experiences and unfulfilled desire to live in the French capital.

A Novel Born of Longing for Paris

McCrea, who has previously lived in Berlin, has long harbored a desire to reside in Paris. Despite multiple attempts, he has been unable to establish a long-term life there, citing expense and practical difficulties. This personal longing forms the backdrop for Rousseau’s Lost Children, where a middle-aged academic, Gavin Mulvany, travels to Paris in 2022-23 to complete a biography of Rousseau and unexpectedly finds himself accompanying the philosopher on walks through the city. The novel immerses readers in the Parisian landscape with detailed descriptions and maps of the routes taken by the two men.

A Complex Narrative Structure

The novel unfolds through a series of letters exchanged between Gavin Mulvany and Rousseau, as well as correspondence with other characters, including Mulvany’s husband, Pedro, and a French academic, Cyprien Abreo. This epistolary form allows McCrea to explore multiple timelines and perspectives, blurring the lines between past and present. The narrative also grapples with the complexities of male relationships, particularly the dynamic between Gavin and Cyprien Abreo, which involves a degree of tension and ambiguity.

Exploring Themes of Desire and Friendship

McCrea has spoken about the importance of “desire” in his writing, not necessarily sexual desire, but a longing for experiences and worlds that remain out of reach. This theme is central to Rousseau’s Lost Children, as both Gavin and Rousseau grapple with their own unfulfilled desires and past actions. The novel also offers a nuanced exploration of male friendship, moving beyond traditional tropes of shared quests or activities to depict a connection that exists as an end in itself. McCrea notes that his depiction of these intense friendships is rooted in his own experiences.

From Academic Text to Novel

Interestingly, Rousseau’s Lost Children originated as an academic text. McCrea began writing a traditional biography of Rousseau but unexpectedly found himself writing in the voice of the philosopher, leading him to abandon the original project and embark on a novel. This shift in direction was initially met with uncertainty, as it meant breaking his contract with the academic publisher, but his agent ultimately supported the change.

A Natural Progression in McCrea’s Operate

McCrea views Rousseau’s Lost Children as a natural progression in his writing, building on the experiences and experimentation of his previous novels and memoir. He believes that his earlier work gave him the confidence to explore form and delve into the complexities of the self in this new novel. The book challenges readers to confront uncomfortable truths and question easy judgments, reflecting McCrea’s own skepticism and his belief that there is a story behind every action.