The 15th Anniversary Convention, AKA "The Master's Affair" was the first Fox-run
Rocky Horror event. It wasn't a traditional con, but a star-studded gala that took place on the 20th Century Fox lot in Century City, CA, on October 20th, 1990 and was held in conjunction with the release of
The Rocky Horror Picture Show 15th Anniversary Box Set. Attendees were given a small grey-plastic goody bag which contained a laminate, a T-Shirt, A 15th Anniversary pin and pen light stamped with "There's a Light" written on the side.