In a pasture in Glen, County Cork, roughly fifty metres east of a stream, lies a fulacht fia with no visible surface trace whatsoever. No mound, no hollow, no scorched ring in the grass to catch the eye. The only evidence of its existence came from local memory: when the field was ploughed at some point in the past, a spread of burnt material emerged briefly from the soil and was noted before the ground closed over it again.

A fulacht fia is a type of prehistoric cooking site found in enormous numbers across Ireland, typically identified by a horseshoe-shaped mound of heat-shattered stone and charcoal, usually positioned close to a water source. The standard interpretation is that stones were heated in a fire and then dropped into a water-filled trough, bringing it to the boil for cooking meat or other purposes. The proximity to a stream here fits that pattern precisely. Bronze Age communities favoured such spots for obvious practical reasons, and the burnt, fragmented stone that accumulates over repeated use is what normally survives in the ground long after the wooden troughs and organic materials have disappeared. In this case, even the characteristic mound seems to have been levelled or dispersed, leaving only the spread of burnt material that ploughing briefly exposed.

What survives now is essentially an absence, a site known because someone once noticed something dark in the turned earth and remembered it. That kind of local, informal observation is often how the more inconspicuous sites of prehistoric Ireland make it into the record at all, passed along before the field is ploughed again and the moment is lost entirely.