Related Clues:
- 'Mr. Roboto' band, 1983
- Underworld route
- Site of Charon's ferry
- 'Kilroy Was Here' band
- "Kilroy Was Here" band
- Mythological river of the underworld
- 'Kilroy Was Here' group
- Group that sang the line 'I'm Kilroy!'
- A pigpen across a hellish river
- "Kilroy Was Here" group
- Group that sang the line "I'm Kilroy!"
- River that the dead drank from, in myth
- Water below doesn't move audibly
- River obstruction fixed by explosive
- Soundly secures spirits transported over this