They call him Sos--a man mightier in strength and spirit than the greatest warriors of post-Blast legend. His past is shrouded in enigma, but now he wanders the earth, writing a heritage in blood and bravery. To some, he is savior; to others, agent of cataclysm. One man alone bears the terrible curse of his friendship. Two mortal women share his doom-driven love. Yet only Sos knows the ultimate purpose of his strange, violent mission on earth: save mankind--or destroy it forever.