back at the av-matoran's village, the toa nuva learned of matoro's death from the av-matoran's description of the events leading up to the blinding flash of light. from this they realized that the mask of life that matoro was last seen with was probably in the swamp below. tahu, gali, and onua departed for the swamp and lewa, pohatu, and kopaka stayed to defend the matoran. tahu leading one group and kopaka leading the other.