Possible Clues:

• Emergence of female monster with a new head
• In mess, sergeant checks back door perhaps
• Way out for example, about the ship
• Exit covered by platoon's sergeant in retreat
• For instance, it's about the ship way out
• Way out or exit
• The right to go out
• The way out, say, on ship
• The North could make her black on the way out
• Departure or way out