Thistle suffered a dent to their promotion challenge with a defeat at the hands of close challengers, Cramond.
With the reciprocated result giving the Linlithgow side confidence going into this game, it was the visitors that took the lead from a Mitchell header.
However, minutes after and just before the break, the home side drew level.
Into the second half, Cramond settled and took charge, winning possession in the midfield. With a couple of goals advantage, the home side began to coast.
Despite a Jamie McLean penalty clawing back at the deficit, Thistle were unable to score again to claim a share of the points.