The Isle of Dr. Sersei

Publisher's blurb: From ignored eco-activist to feared mad scientist, Dr. Sersei will save the world, even if it means unleashing a plague that could wipe out half of humanity! The heroes have located her secret island base, and the clock is ticking before virus-laden missiles blast off to change the Earth forever. Are superpowers any match an army of mercenaries and mutants, or will the heroes meet their end on the Isle of Dr. Sersei?