Alexander Crown trilogy book 3 Regeneration is brutally realistic. Alexander Crown continues on a journey that makes him humanity's most deadly asset. Crown has a weapon so devastating that in unethical hands, human life could become extinct. He accesses every killing skill he'd utilized as a mercenary, and every ounce of cunning he'd experienced as a philanthropist to out maneuver the Chinese, Russians and Israelis to keep his medical discovery undisclosed. Preventing ruthless and corrupt monsters from stealing his chilling weapon, and turning it against humanity, is Crown's darkest mission.