Black magic always backfires. At first, Mattie Franklin had cool powers. Now, she’s got spider-arms coming out of her back. And Charlotte Wittier–the one who was supposed to get the powers when Norman Osborn’s spell went wrong–is in control of the arms.
Know who else has psychic control over extra arms? Doctor Octopus.
He agrees to help Mattie if she’ll help him.
Meanwhile, private eye and former Spider-Woman Jessica Drew helps Spider-Man track down Mattie.
It looks like Mattie is working with Doc, but she uses his training on psychic arm control to turn against him.
Yeah, this is a dumb story full of plotholes.