Mysterium 2004 was held in Toronto, Ontario, Canada from July 23rd – 25th. It was the first and only Mysterium to be held outside the United States, and featured a special presentation from UbiSoft Entertainment where fans got an exclusive sneak peek at Myst IV: Revelation in addition to the traditional presentations from community members and a fair amount of cathartic grieving over the closure of Uru Live earlier that year.