Ife-Iyoku, Tale of Imadeyunuagbon is an 18k word sci-fi/fantasy, post apocalyptic, Africanfuturistic novella by Oghenechovwe Donald Ekpeki. It is one of the works in the Dominion Anthology and available to read for free here as a sample and teaser for the anthology.
You can purchase the Dominion Anthology to read the rest of the stories, here.
Being a novella at 18k words, Ife-Iyoku, Tale of Imadeyunuagbon is eligible for nomination in the Hugo, Nebula, WFA, Bram Stoker, BFA, BSFA and Nommo awards, in the novella category, or any other category 18k word fiction stories fall into, depending on the rules of the particular awards.
The Ife-Iyoku novella has been reviewed in a number of places, alongside the Dominion Anthology.