Related Clues:

• Spilling salt and breaking a mirror, say
• Signs to beware of
• Comets, to the superstitious
• Black cats, traditionally speaking
• Warning signals
• M. Night Shyamalan film
• Lets the fingers do the talking?
• Omens
• Broken mirrors, to some
• Signs, to the superstitious
• Traces
• Indications needing interpretation
• Signs of trouble
• Autographs
• Road markers