That absence is itself part of the story. A fulacht fia once sat here, one of those enigmatic Bronze Age cooking sites found in their thousands across Ireland, typically identified by a distinctive horseshoe-shaped mound of burnt and shattered stone accumulated over repeated use. The standard explanation is that water was boiled in a trough by dropping fire-heated stones into it, the stones cracking with the thermal shock and being discarded into a spreading mound on either side. At Palmerstown, that mound measured roughly ten metres north to south and stood about sixty centimetres high, modest but legible, its two grass-covered arms partially joined at the east and opening to the west around a trapezoidal trough three metres wide at the mouth, narrowing to just over a metre at the back.

When archaeologists visited in July 1992, the monument was intact, sitting quietly in the marsh as it had for perhaps three thousand years. Within three years it was gone. According to Professor Rynne, the site was bulldozed in 1995, erasing a feature that had survived into the modern era largely because the wet, marginal ground around it had never been worth improving. The irony is a familiar one in Irish archaeology: monuments that outlasted Viking raids, land clearances, and centuries of agricultural change can disappear in an afternoon once machinery arrives. The Palmerstown fulacht fia left behind no excavation record, no retrieved artefacts, no radiocarbon dates, only its dimensions as noted on a single site visit and the bare fact of its destruction.