Kanfo, the leader of the Eso Warriors of Elu, brings his inquisitive son Toye along on the hunt for Iyanu; she encounters Mama Sewa, the astute matriarch of the Riverlands Settlement who has secret knowledge of Iyanu's past and powers.

Iyanu, Biyi and Sewa face the corrupt divine beast Ekun and the vicious people of the deep; in Elu, workers' district citizens demand justice from Oba Adeyinka and chancellor Nuro's oppressive regime.