UnderworldCodeThe Underworld Issue, Further Exposed: The Ring of Dishonor GathersThe Underworld Issue, ExposedDecoder Ring Presents: The Ring of Dishonor's Induction ExamDecoder Ring Presents: The Door OpensDecoder Ring Presents: The Ring of Dishonor's Rings of DishonorDecoder Ring Presents: A Key to Using the KeyDecoder Ring Presents: The Key to Entering the Ring of DishonorDecoder Ring Presents: Underworld Code #8Decoder Ring Presents: Underworld Code #7Decoder Ring Presents: Underworld Code #6Decoder Ring Presents: Underworld Code #5Decoder Ring Presents: Underworld Code #4Decoder Ring Presents: Underworld Code #3Decoder Ring Presents: Underworld Code #2Decoder Ring Presents: Underworld Code #1Decoder Ring Presents: The Underworld Ring of Dishonor