At Glennaknockane in north County Cork, a souterrain, one of those narrow stone-lined underground passages built in early medieval Ireland, typically for storage or refuge, lies somewhere beneath the ground with no visible trace remaining on the surface above it.

The record for this site is brief but quietly telling. Writing in 1934, a researcher named Bowman noted that the souterrain had been found roughly fifteen years earlier, placing its discovery around 1919. It sat approximately ten yards west of a nearby ringfort, and crucially outside its boundary rather than within it, which is worth noting since souterrains are commonly found inside such enclosures. By the time Bowman came to record it, the passage had already been closed over again. That cycle, discovered, noted, sealed, forgotten, gives the site a slightly melancholy character. Whatever was found during that original opening, the detail did not make it into the surviving record, and the ground has kept its own counsel since.