The midlanders have three games to produce an unlikely escape.
Buccaneers are on the cusp of being relegated from Division 1B of the All Ireland League after their latest loss.
The Westmeath club put in an admirable performance against an Old Belvedere side well positioned to compete for promotion in the play-offs.
Buccs raced in to a 21-5 lead after half an hour, only to see the Dublin club reel them with a six try performance to run out 36-28 winners.
That result leaves the Athlone club on verge of the drop.
They trail Queen's by eight points with three games remaining.
Their next outing comes against Highfield in two weeks time.
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