Amazing Spider-Man (1963 1st Series) #401
"Down in the Darkness." The Mark of Kaine, Part 2 of 5. Script by J.M. DeMatteis. Pencils by Mark Bagley. Inks by Larry Mahlstedt. Cover by Mark Bagley and Larry Mahlstedt.
On the streets of Manhattan, Mary Jane runs away from Kaine! And when she rounds a corner, she bumps into Peter! However, it's not her husband, it's Spidercide! The "third Peter Parker" clashes with Kaine and gives MJ time to escape! But a while later inside her home, Mary Jane is abducted by Kaine again! Meanwhile at Ryker's Island, Judas Traveller helps the real web-slinger escape from prison so he can rescue his wife!