The Mbwaa origin narrative legendary
In the Mbwaa story the Ngaa, ancestors of the Meru, are held under a people called the Nguo Ntune, the "red clothes" or red people, who impose a series of absurd, impossible tasks. A diviner cuts open a volunteer warrior named Aita, examines and heals him, and the reborn Aita strikes a great water so it parts, letting the fugitives cross on dry land before they disperse into the Tigania, Igembe, Imenti, Mwimbi, and Tharaka. Anne-Marie Peatrik records nine variants gathered between 1910 and the 1990s.