To synopsize Luna de lobos as a fictionalized account of the struggle between Republican guerrillas and the Civil Guard in the immediate aftermath of the Spanish Civil War is clearly misleading. A close reading of the work reveals an additional protagonist in this guerrilla battle set in the mountains of northern Spain: the natural world. This article provides a close analysis of Llamazares's presentation of nature in order to support the assertion that the novel transcends the specificity of Spain's history to provide a broader existential study of man's place in the universe, in particular his relationship with the natural world. In Luna de lobos, nature is a hostile force that brutalizes the protagonists. This presentation of the natural world conforms to Llamazares's aesthetic concerns as a Romantic. For Llamazares, the relationship between man and nature has become irremediably fractured.