"If This Be My Destiny...!" is a story arc featuring the Marvel Comics superhero Spider-Man. It spans the issues The Amazing Spider-Man #31–33 (1965-1966), and was written by Stan Lee and Steve Ditko, the latter of whom also did the art. The story introduces supporting characters Harry Osborn and Gwen Stacy, Spider-Man's nemesis Doctor Octopus temporarily assuming the Master Planner alias, and Spider-Man being pinned under heavy machinery, which he lifts after gathering enough will power through thoughts of his family.