Simon Spurrier 
Culled [EPUB ebook] 

He made a stand against the end of the world…The Blight arose from nowhere. It swept across the bickering nations like the End of Times and spared only those with a single fortuitous blood type. Hot-headed religion and territorial savagery rule the cities now.Somewhere amidst the chaos a damaged man receives a signal, and with it the tiniest flicker of hope. The chance to rediscover the humanity he lost, long ago, in the blood and filth and horror of The Cull.