Not into ruin, not into legend, but simply below the surface of a grass field, leaving only a low mound and a series of earthwork enclosures to suggest anything was ever there. What makes the site at Seskin quietly peculiar is precisely that absence: there is a castle here, officially recorded, yet nothing of it is visible at ground level.

The earthworks came to light not through excavation or local tradition but through aerial photography. A Cambridge University Committee for Aerial Photography flight in 1969 captured the site from above, revealing a pattern of enclosures of varying sizes arranged to the north, south, east, and west of the mound where the castle once stood. This kind of discovery is not uncommon in Irish archaeology; cropmarks, soil discolouration, and slight changes in ground relief can betray buried or demolished structures to a camera that would be invisible to anyone walking the same ground. The castle itself remains unclassified, meaning its type, date, and original form are not yet firmly established. The enclosures surrounding it are likely associated with the castle's operation, perhaps serving as yard, garden, or bawn, the term used for a walled or enclosed courtyard typical of later medieval and early modern fortified sites, though the specifics here remain uncertain. The setting is gentle rather than dramatic: reclaimed grassland on a gradual slope descending toward the Nore, the kind of landscape that gives little away.