Ultimate Spider-Man, Vol. 1 #22 (2002)

Reflections of...
Harry Osborn is back at school, having completely forgotten that his father was the Green Goblin, with the help of an expensive therapist that his father has chosen. Peter is invited over for dinner, where he meets Norman, and learns that Norman can choose when to become the Goblin, with a little chemical help.
Release Date: 2002