So where was Art3mis when she found the Jade Key? The artifact Fyndoro's Tablet of Finding lets its owner see where anyone is in the OASIS at any time.
Surprise, surprise: IOI owns the artifact. When Sixer ships clog up Sector Seven, Wade knows that's where the Jade Key must be hidden.
Wade thinks the Jade Key riddle must have something to do with John Draper, a famous hacker who, with a plastic whistle from a box of Cap'n Crunch cereal, was able to evade telephone long distance charges (remember those?) in 1972.
The "trophies" part of the riddle stumps Wade, though. He thinks it must have to do with Halliday's favorite childhood arcade, which has been recreated in the OASIS on a planet creatively called Archaide.
To get there fast, Parzival takes his starship, the Vonnegut, through a stargate to Archaide.