Related Clues:

• Fall in
• Give up the argument
• Auel's "The Clan of the __ Bear"
• Large cave
• Collapse, with ''in''
• Natural hollow in hill or cliff
• Craven in a cave
• A large cave
• Natural hollow in side of hill or cliff
• Underground enclosure with surface access
• Hollow in a cliff
• Natural underground chamber
• Hollow in a cliff or underground
• Claim to be in a hole in the ground
• Beware of that hole!