Related Clues:
- Warning captain, having dived, rejected
- Surfacing submariner's premonition
- Prophetic event
- A sign from John Galt
- Sign saying 'Ladies Only?'
- Sign literary character underwater is surfacing
- Room enough to contain Galt's warning
- Old soldiers writing on the wall
- Warning from engineering section
- Sign of old people
- Warning against involving your setter
- Sign that's displayed at hen party?
- Sign in bathroom — "engaged"
- A warning from John Galt
- Sign on without note