Nancy Farmer said this quote

I am she who lifts the mountainsWhen she goes to hunt,Who wears mamba for a headbandAnd a lion for a belt.Beware!I swallow elephants wholeAnd pick my teeth with rhinoceros horns,I drink up rivers to get at the hippos.Let them hear my words!Nhamo is comingAnd her hunger is great.I am she who tosses treesInstead of spears.The ostrich is my pillowAnd the elephant is my footstool!I am NhamoWho makes the river my highwayAnd sends crocodiles scurrying into the reeds!