The Molecule Person was created when nine-year old girl Cynthia held the Molecule Man's Wand, which contained the essence of then-believed-dead Owen Reece, within the Man-Thing's Swamp, creating a mutation. Iron Man succeeded in making her drop the Wand, thus returning her to normal. The wand was then grabbed by a rattlesnake which became the following version of the Molecule Man.
Powers and Abilities
She had the powers of the Molecule Man for a while
Double personality, she could fight the Molecule Man's essence in her mind.