CHARON
| Date | Clue |
|---|---|
| 2018-03-16 | Largest moon of Pluto |
| 2012-04-18 | Styx ferryman |
| 2003-01-25 | Underworld figure |
| 2002-06-27 | Soul transporter |
| 1999-12-12 | Styx ferryman |
| 1998-06-20 | Mythical character in "The Inferno" |
| 1997-12-14 | Styx ferryman |
| 1994-10-12 | Styx ferryman |