Related Clues:

• Hand part
• Parting of the heavens, maybe
• Verne character moving against the tide?
• Seer's sign
• Warning sign
• Telltale sign
• Sign of things to come
• Forewarning
• For money, it may be read
• Sign of foreboding
• Type of tree
• Dark clouds on the horizon, say
• Portentous event
• Dark clouds, say
• Evil sign