In MÃÂori mythology, Matuku-tangotango (Matuku) is an ogre who kills Wahieroa the son of TÃÂwhaki. In some versions, Matuku lives in a cave called Putawarenuku. RÃÂtÃÂ, the son of Wahieroa, sets off to avenge his murdered father, and arrives at last at Matuku's village. He hears from Matuku's servant that at the new moon his master can be killed at the pool where he washes his face and hair. When the new moon has come, RÃÂtÃÂ waits until the ogre comes out of his cave and is leaning over with his head in the pool. He grabs him by the hair and kills him. RÃÂtÃÂ then sets off to rescue his father's bones from the Ponaturi. A South Island version names the islands where Matuku lives as Puorunuku and Puororangi and also states that RÃÂtÃÂ nooses Matuku as he comes out of his lair to perform certain rituals (Tregear 1891:232, 399-400).