What if Peter Parker and Mary Jane had a daughter? The ever-amazing answer is, she'd be May "Mayday" Parker -A.K.A. Spider-Girl! Spinning out of the pages of WHAT IF? into her very own universe, the teenage Mayday inherits spider-powers and dons the red-and-blues of her retired father! Now follow her adventures from the very beginning, as Mayday learns about Spider-Man's legacy and wrestles with whether to follow in his footsteps! She'll face threats old and new - from the Venom symbiote and Kaine, to Crazy Eight and the Dragon King - and meet some of the incredible faces of the future Marvel Universe, like Darkdevil, Wild Thing, the Fantastic Five and the newest roster of the mighty Avengers! Discover a friendly neighborhood hero for a new generation! COLLECTING: WHAT IF? (1989) 105, SPIDER-GIRL (1998) 1/2, 1-15, ANNUAL '99