You sense a pointy hat on top of your head

You sense a pointy hat on top of your head.

In NetHack, the above message occurs whenever a cornuthaum worn by a non-Wizard hero blocks clairvoyance from the following sources:

• The clairvoyance spell
• The clairvoyance that can be bought from aligned priests
• Clairvoyance from carrying the Amulet of Yendor

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