Shortly afterwards, two Matoran, Takua and Jaller, discovered the Kanohi Mask of Light. They were tasked with traveling across the island of Mata Nui to find the Toa of Light. Meanwhile, Makuta created and sent out six creatures called Rahkshi to find the mask and stop the coming of the Toa of Light. The Rahkshi tore across Mata Nui, destroying the villages of Ta-Koro and Onu-Koro. The Rahkshi were stopped by the Toa, but not before killing Jaller. Jaller's death caused Takua to realize he was the Toa of Light, and he donned the mask to become Toa Takanuva. Takanuva went to confront Makuta and, during their battle, they both fell into a pool of energized protodermis, a silvery substance with the power to change or destroy a being, and became fused together into the being Takutanuva. Takutanuva then proceeded to open the door to the city of Metru Nui, allowing the Matoran and Toa through. Using some of his life energy, he revived Jaller while still holding the door open. However, the use of energy was too great and Takutanuva was crushed by the door, seeming to kill both Takanuva and Teridax, leaving only Takanuva's Mask of Light. Takanuva was promptly revived when his mask was used to activate the beacon to Metru Nui. Afterwards, the Matoran prepared to return to the island city of Metru Nui.