He talked to local people about them and was told that "tutelary or protective fetish or juju of the village of Nsude is called Uto and is said to possess the special merit of killing thieves.
Basden says that there were meant to be 10 of these because "there are ten quarters or extended families in the village and each was required to erect one Nkpuru.
[3] The Nsude pyramids were constructed using earth and clay, and they consist of a series of stepped terraces that form a pyramid-like shape.
The stepped terraces of the pyramids could have been used for various ritualistic activities, including offerings, sacrifices, and ceremonies related to agricultural or ancestral veneration.
[citation needed] Over time, the Nsude pyramids experienced erosion and degradation due to their earthen construction and exposure to the elements.