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Your final blow kills the scarlet wasp-leader and immediately the surviving swarm members break off their attack. They stream towards the opening at the centre of the ceiling and disappear towards the sky at the top of the shaft, closely followed by the remainder of their colony.
When you feel sure that the nests are empty, you reach up and take a grip of the rough brick which lines the shaft. It offers good purchase for your fingers and toes, enabling you to climb past the nests and reach the top of the shaft in a matter of minutes.
