Sixteen million mutants dead.and that was just the beginning. In one bold stroke, writer Grant Morrison (, ) propelled the x-men into the 21st century - masterminding a challenging new direction For Marvel's mutant heroe...Sixteen million mutants dead.and that was just the beginning. In one bold stroke, writer Grant Morrison (, ) propelled the x-men into the 21st century - masterminding a challenging new direction For Marvel's mutant heroes that began with the destruction of genosha and never let up.