Okorafor, Nnedi. She who knows (Series) #1

DAW book collectors #1964

"An intimate glimpse into the life of a teenager whose coming of age will herald a new age for her world. Set in the universe Africanfuturist luminary Nnedi Okorafor first introduced in the World Fantasy Award-winning Who Fears Death, this is the first in the She Who Knows trilogy"--

When there is a call, there is often a response. Najeeba knows. She has had The Call. But how can a 13-year-old girl have the Call? Only men and boys experience the annual call to the Salt Roads. What's just happened to Najeeba has never happened in the history of her village. But it's not a terrible thing, just strange. So when she leaves with her father and brothers to mine salt at the Dead Lake, there's neither fanfare nor protest. For Najeeba, it's a dream come travel by camel, open skies, and a chance to see a spectacular place she's only heard about. However, there must have been something to the rule, because Najeeba's presence on the road changes everything and her family will never be the same