Wisbech kept their hopes of beating the drop from London 3NE alive with a priceless win at the league's bottom side.
The Harecroft Road club moved to one point from safety with their first win in months.
The triumph, which ended a miserable nine-game losing streak, has seen Wisbech move above Canvey Island into 10th.
However, the Essex side have played one game less than the Fens outfit.
Will Pettit scored a hat-trick of tries for the visitors while Josh Seal crossed the line twice and Sam Anderson kicked one conversion.
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