Spellbook of detect unseen
| spellbook of |
+ detect unseen
|Base price||300 zm|
|Turns to read||8|
|Ink to write||15–29|
|Power cost||15 Pw|
|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.
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.
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.