Possible Clues:

• Remote place used by those on the run
• Go underground
• Extreme uncertainty - so one hears 'Retreat!'
• No inner sanctuary?
• Retreat raised suspicion, we hear
• For safety, the skin just isn't in it
• Retreat in area of land once dismissed
• Criminal's den
• Retreat from announcement of great uncertainty
• The man I had included is not in the refuge