# Spellbook of detect unseen

spellbook of  +   detect unseen   

Appearance

random

Abundance

2.03%

Base price

300 zm

Weight

50

Turns to read

8

Ink to write

15–29

Spell type

divination

Level

3

Power cost

15 Pw

Direction

non-directional  

Equivalent

wand of secret door detection

This spellbook allows you to learn the detect unseen spell, which has the same effect as a wand of secret door detection. 

Effects
Main article: Wand of secret door detection
It reveals secret doors and corridors, non-statue traps, portals, mimics, hidden, submerged and invisible monsters in an area of radius 8 within line-of-sight. On the Plane of Air only, it also penetrates clouds.

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Area in which traps etc. are revealed
Strategy
The spell of detect unseen can be used for finding the hidden entrance to the temple in Moloch's Sanctum. It can also be used to find the portals on the Elemental Planes. However, for most NetHack players a wand of secret door detection will not be hard to find, and each one carries many charges. Some foodless atheist players cast this spell to detect traps they cannot acquire resistances to.

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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 Information on this page may be out of date.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 the current version's tag or {{noversion}} as appropriate.