by Nnedi Okorafor
Fans of Harry Potter will love this book! It's Hogwarts with an African twist!
Sunny must lead a double life when she discovers she is magical but still living with her non-magic family. She studies secretly with her friends, learning all about the world of the Leopards--magical people. But the magical elders have had a vision that will pitch Sunny and her friends against a terrible forbidden evil set to be unleashed on the world.
(Akata Warrior - the sequel is fantastic too!)
The above cover is for the paperback version. I like it, but I think the original hardback cover is better.