This is a cillín, a term for the informal, unconsecrated burial sites used for centuries to inter unbaptised infants and others who, under Catholic Church practice, could not be buried in hallowed ground. These places exist across Ireland in their hundreds, often occupying liminal spots: the margins of fields, old ringfort interiors, the banks of streams, or the edges of townlands where the land seemed to belong to no clear category. Their locations were rarely random; communities chose sites with their own logic, sometimes ancient, sometimes purely practical, and the knowledge of them passed quietly between generations.