The Terror Wheel is the second EP by the AmericanHorrorcore band, Insane Clown Posse. It was released on August 5, 1994. The producer of the EP was Mike E. Clark. If you called the number featured in the song "Amy's in the Attic" at 6:06 into the song, it would tell you the name of the next Joker's Card, Riddle Box.