Castlepook’s cut-marked reindeer femur is intriguing because it may signal a brief human encounter without demonstrating settlement, hunting practices, or a wider community. The article contrasts this tentative trace with environmental evidence from Derryvree and the cave fauna, reminding us that bones can reflect different processes. This raises an interpretative challenge: how should archaeologists balance the significance of an early human-modified bone against uncertainties created by old excavation methods, mixed deposits, and dating ranges? What kinds of securely stratified finds, taphonomic analyses, or regional comparisons would most convincingly clarify whether people merely visited Ireland or used its landscapes more regularly?