Extinction (The Wasteland Chronicles) (Volume 6)

Time is running out for humanity to defeat the encroaching forces of the Radaskim. As settlements fall and the Great Blight spreads, it falls on the New Angels to unite disparate factions before it is too late. But the dark Xenomind, Askala, has her own plans to end humanity before that can ever happen, and only the greatest sacrifice can stop her from achieving her aims...