From publisher blurb:
Sometimes what your campaign needs is a hero of legend, who everyone recognizes, even though they’ve never met her before.
Grendel is a radiated monster, the unstoppable and rage-filled alter-ego of physicist Dell Greyson. Irradiated during a space mission (as a result of the meddling Doctor Seymour Stevenson, who has since become the genius villain the Superior), Greyson struggles to find a way to control the monster within. Grendel has helped to save the world, but is also a target of unending efforts by a special military team to capture him!