Spellbook of clairvoyance

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spellbook of
+   clairvoyance   Light green spellbook.png
Appearance random
Abundance 1.52%
Base price 300 zm
Weight 50
Turns to read 6
Ink to write 15–29
Spell type divination
Level 3
Power cost 15 Pw
Direction non-directional
Special for samurai

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 in NetHack, the clairvoyance spell only maps once per cast and does not persist as a recurring effect. It is the special spell for samurai.

Messages

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

Strategy

This spell is a passable alternative to magic mapping, especially for characters who can advance to Basic but not Skilled in Divination. Samurai gets a reduction in failure rate on this spell, making it the only spell that they can possibly cast consistently without a Robe. It can be used successfully even on levels which are unmappable, though that's of dubious use considering that most unmappable levels have very static layout anyways.

References

  1. do_vicinity_map in detect.c: Dimensions of mapped area
  2. spell.c in NetHack 3.4.3, line 943: Clairvoyance spell blocked by cornuthaum

This page may need to be updated for NetHack 3.6.1.

It may contain text specific to NetHack 3.4.3. Information on this page may be out of date.

Editors: After reviewing this page and making necessary edits, please change the {{nethack-343}} tag to {{nethack-360}} or {{noversion}} as appropriate.