How Long 'til Black Future Month by N. K. Jemisin
Spirits haunt the flooded streets of New Orleans in the aftermath of Hurricane Katrina. In a parallel universe, a utopian society watches our world, trying to learn from our mistakes. A black mother in the Jim Crow South must save her daughter from a fey offering impossible promises. And in the Hugo award-nominated short story "The City Born Great," a young street kid fights to give birth to an old metropolis's soul.