8 Mysteries Even Spider-Man Couldn't Solve

Very much a case of 'like father, like son', Spider-Man has found himself tormented by both the Norman Osborn and Harry Osborn versions of the Green Goblin over the decades.

While Norman is very much forever simply one of the most outright evil characters in the realm of Marvel Comics, Harry was and is slight different from his old man. In the case of Harry, his days as the Green Goblin were usually driven by addiction issues and his battles with mental illness.

Throughout the history of Spider-Man, one of the great conundrums he's ever had to deal with, was how to save Harry Osborn from his struggles and personal demons.

Unfortunately, ol' Web-head was unable to stop Harry from succumbing to his dark instincts. So much so, 1993's Best of Enemies arc saw Peter's long-time best friend fully embracing the Green Goblin persona and embarking on a mission to kill Spider-Man - and to do that, that meant kidnapping Mary Jane Watson in order to get Spidey's attention.

This whole plot from the Goblin would eventually lead to his own death. Having injected himself with a souped-up version of the infamous Goblin Formula in order to take down the Wall-crawler, Harry would end up being fatally poisoned by said serum.

Realising the errors of his ways on his deathbed, Harry Osborn would pass away with Spider-Man at his bedside.