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You stand directly below the shaft and focus your Kai power on the basket-sized nests that are fixed along its walls. The incessant buzzing grows steadily louder; then several lines of large wasp-like insects emerge from the nests and escape towards the sky at the top of the shaft, driven away by your mental command.
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.
