spellbook of
+   clairvoyance   Light green spellbook
Appearance random
Spell type divination
Level 3
Turns to read 6
Power cost 15 Pw
Ink to write 15–29
Cost 300 zm
Weight 50

A spellbook of clairvoyance provides the clairvoyance divination spell, which magically maps a 19×11 area centered on your location.[1] The spell is blocked if you are wearing a cornuthaum and are not a Wizard.

Unlike the clairvoyance provided by aligned priests and some items, the clairvoyance spell only maps once per cast and does not persist as a recurring effect.


"You sense a pointy hat on top of your <head>."
The spell was blocked by a cornuthaum.[2]


This spell is a passable alternative to magic mapping, especially for Samurai, who get a bonus reduction in failure rate.


  1. Dimensions of mapped area. (do_vicinity_map in detect.c)
  2. Clairvoyance spell blocked by cornuthaum. (spell.c, line 943)
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