Question: when does mary jane find out who spiderman is

title: Gwen Stacy
text: A girl seeming to be Gwen Stacy appears in Ultimate Spider - Man # 98 . Says Ultimate artist Mark Bagley , `` Gwen 's return is integral to the Clone storyline and is basically a way to rock Peter 's world ... again . '' In this issue `` Gwen '' appears to have no memory of her `` death '' and believes she was in a hospital , from which she has escaped . In issue # 100 , after a raft of revelations , the stress of the situation enrages `` Gwen '' . She transforms into what appears to be Carnage before leaping out the window . In the next issue , `` Richard Parker '' claims `` Gwen '' should not have met Peter at all , and was merely an experiment in stem cell research . This Gwen / Carnage fights with the Fantastic Four , Nick Fury , and the Spider - Slayer drones , until she is knocked unconscious by a beam of light , and taken into custody . In issue # 113 , Norman Osborn as the Green Goblin causes a massive prison break from the Triskelion . An inmate appearing to be ' Gwen ' walks out amidst the chaos , disappearing in the shadows . It has been revealed the creature posing as Gwen Stacy is still the original Ultimate Carnage Spider - Man faced earlier in its run . After `` devouring '' Gwen , this incarnation of Carnage has gone on to mimic her `` essence '' and now believes itself to be Gwen Stacy .