Spellbook of detect unseen - Revision history

Phol ende wodan: fix some spelling/grammar typos and variant sections which mention the spell of clairvoyance instead

2026-01-13T11:42:53Z

fix some spelling/grammar typos and variant sections which mention the spell of clairvoyance instead

Umbire the Phantom: /* Description */ and here...

2025-07-09T07:26:31Z

‎Description: and here...

Umbire the Phantom: /* Strategy */ typo

2025-07-08T20:56:44Z

‎Strategy: typo

Umbire the Phantom: pasto

2025-07-08T20:54:28Z

pasto

Umbire the Phantom: /* Strategy */ flows better

2025-07-07T01:07:34Z

‎Strategy: flows better

Umbire the Phantom: variants - not much to the last couple articles, that'll probably change with the next one

2025-07-07T00:38:11Z

variants - not much to the last couple articles, that'll probably change with the next one

Umbire the Phantom: /* Description */ detail

2025-07-07T00:34:48Z

‎Description: detail

Umbire the Phantom: /* Description */ let's try it like this

2025-07-07T00:28:48Z

‎Description: let's try it like this

Umbire the Phantom: full monty

2025-07-07T00:26:46Z

full monty

JASON10668: Add languages template.

2025-06-25T12:28:30Z

Add languages template.

@@ Line 28: / Line 28: @@
 ==Strategy==
-The spell of detect unseen has similar use cases to the wand of secret door detection: finding dangerous traps such as [[polymorph trap]]s and [[spiked pit]]s, detecting [[magic portal]]s from roughly the mid-game on, finding the [[temple]] entrance in [[Moloch's Sanctum]], and s on. However, the spell is much more difficult to use nearly as frequently&mdash;some skill in divination spells will often be required to cast it somewhat reliably, and the hero must also have the energy require, while the wand can be zapped freely, tends to have plenty of charges and is accessible much earlier; many players will opt to keep a spare whenever they need trap detection.
+The spell of detect unseen has similar use cases to the wand of secret door detection: finding dangerous traps such as [[polymorph trap]]s and [[spiked pit]]s, detecting [[magic portal]]s from roughly the mid-game on, finding the [[temple]] entrance in [[Moloch's Sanctum]], and so on. However, the spell is much more difficult to use nearly as frequently&mdash;some skill in divination spells will often be required to cast it somewhat reliably, and the hero must also have the energy required, while the wand can be zapped freely, tends to have plenty of charges and is accessible much earlier; many players will opt to keep a spare whenever they need trap detection.
 Primary casters and other heroes that aim to cast outside of combat, such as some [[Monk]]s, [[Priest]]s and [[Wizard]]s, may opt to learn and utilize the spell when navigating the dungeon, and other heroes may consider the spell as an alternative if they are saving wands of secret door detection for [[polypiling]]. The spell may also be preferred for much more specific builds and [[conduct]] play, such as [[foodless]] [[atheist]]s casting the spell to detect [[trap]]s they do not have the [[resistance]]s to deal with (or cannot acquire them).
@@ Line 42: / Line 42: @@
 ===xNetHack===
-In [[xNetHack]], the spell of clairvoyance is lowered to a level 2 divination spell.
+In [[xNetHack]], the spell of detect unseen is lowered to a level 2 divination spell.
 ===Hack'EM===
-In [[Hack'EM]], the spell of clairvoyance is lowered to a level 2 divination spell as in xNetHack.
+In [[Hack'EM]], the spell of detect unseen is lowered to a level 2 divination spell as in xNetHack.
 ==References==

@@ Line 19: / Line 19: @@
 ==Description==
-At all [[skill]] levels, the spell of detect unseen has the same effect as [[zapping]] a [[wand of secret door detection]]:{{refsrc|src/spell.c|1099|nethack=3.6.7|comment=case explicitly calls <tt>weffects()</tt>}}{{refsrc|src/spell.c|1137|nethack=3.6.7|comment=all spells with wand equivalents (or equivalents in other directional-ized items) fall through to this line}} the spell affects a roughly-circular area in a 8-square radius centered on the [[hero]], displayed in the diagram below.
+When successfully [[cast]] at any [[skill]] level in divination spells, the spell of detect unseen has the same effect as [[zapping]] a [[wand of secret door detection]], and affects a roughly-circular area in a 8-square radius centered on the [[hero]], displayed in the diagram below.{{refsrc|src/spell.c|1099|nethack=3.6.7|comment=case explicitly calls <tt>weffects()</tt>}}{{refsrc|src/spell.c|1137|nethack=3.6.7|comment=all spells with wand equivalents (or equivalents in other directional-ized items) fall through to this line}}
 {{caption|{{Circleradius9|r=8}}|The area in which the spell of detect unseen reveal monsters, traps, etc.}}

@@ Line 28: / Line 28: @@
 ==Strategy==
-The spell of detect unseen has similar uses cases to the wand of secret door detection: finding dangerous traps such as [[polymorph trap]]s and [[spiked pit]]s, detecting [[magic portal]]s from roughly the mid-game on, finding the [[temple]] entrance in [[Moloch's Sanctum]], and s on. However, the spell is much more difficult to use nearly as frequently&mdash;some skill in divination spells will often be required to cast it somewhat reliably, and the hero must also have the energy require, while the wand can be zapped freely, tends to have plenty of charges and is accessible much earlier; many players will opt to keep a spare whenever they need trap detection.
+The spell of detect unseen has similar use cases to the wand of secret door detection: finding dangerous traps such as [[polymorph trap]]s and [[spiked pit]]s, detecting [[magic portal]]s from roughly the mid-game on, finding the [[temple]] entrance in [[Moloch's Sanctum]], and s on. However, the spell is much more difficult to use nearly as frequently&mdash;some skill in divination spells will often be required to cast it somewhat reliably, and the hero must also have the energy require, while the wand can be zapped freely, tends to have plenty of charges and is accessible much earlier; many players will opt to keep a spare whenever they need trap detection.
 Primary casters and other heroes that aim to cast outside of combat, such as some [[Monk]]s, [[Priest]]s and [[Wizard]]s, may opt to learn and utilize the spell when navigating the dungeon, and other heroes may consider the spell as an alternative if they are saving wands of secret door detection for [[polypiling]]. The spell may also be preferred for much more specific builds and [[conduct]] play, such as [[foodless]] [[atheist]]s casting the spell to detect [[trap]]s they do not have the [[resistance]]s to deal with (or cannot acquire them).

@@ Line 19: / Line 19: @@
 ==Description==
-At all [[skill]] levels, the spell of light has the same effect as [[zapping]] a [[wand of secret door detection]]:{{refsrc|src/spell.c|1099|nethack=3.6.7|comment=case explicitly calls <tt>weffects()</tt>}}{{refsrc|src/spell.c|1137|nethack=3.6.7|comment=all spells with wand equivalents (or equivalents in other directional-ized items) fall through to this line}} the spell affects a roughly-circular area in a 8-square radius centered on the [[hero]], displayed in the diagram below.
+At all [[skill]] levels, the spell of detect unseen has the same effect as [[zapping]] a [[wand of secret door detection]]:{{refsrc|src/spell.c|1099|nethack=3.6.7|comment=case explicitly calls <tt>weffects()</tt>}}{{refsrc|src/spell.c|1137|nethack=3.6.7|comment=all spells with wand equivalents (or equivalents in other directional-ized items) fall through to this line}} the spell affects a roughly-circular area in a 8-square radius centered on the [[hero]], displayed in the diagram below.
 {{caption|{{Circleradius9|r=8}}|The area in which the spell of detect unseen reveal monsters, traps, etc.}}

@@ Line 30: / Line 30: @@
 The spell of detect unseen has similar uses cases to the wand of secret door detection: finding dangerous traps such as [[polymorph trap]]s and [[spiked pit]]s, detecting [[magic portal]]s from roughly the mid-game on, finding the [[temple]] entrance in [[Moloch's Sanctum]], and s on. However, the spell is much more difficult to use nearly as frequently&mdash;some skill in divination spells will often be required to cast it somewhat reliably, and the hero must also have the energy require, while the wand can be zapped freely, tends to have plenty of charges and is accessible much earlier; many players will opt to keep a spare whenever they need trap detection.
-Primary casters and other heroes that aim to cast outside of combat, such as some [[Monk]]s, [[Priest]]s and [[Wizard]]s, may opt to learn and utilize the spell when navigating the dungeon, and other heroes may consider the spell as an alternative if they are saving wands of secret door detection for [[polypiling]]. The spell may also be preferred for much more specific builds and [[conduct]] play, such as [[foodless]] [[atheist]]s casting the spell to detect [[trap]]s they do not have (or cannot acquire) the [[resistance]]s to deal with.
+Primary casters and other heroes that aim to cast outside of combat, such as some [[Monk]]s, [[Priest]]s and [[Wizard]]s, may opt to learn and utilize the spell when navigating the dungeon, and other heroes may consider the spell as an alternative if they are saving wands of secret door detection for [[polypiling]]. The spell may also be preferred for much more specific builds and [[conduct]] play, such as [[foodless]] [[atheist]]s casting the spell to detect [[trap]]s they do not have the [[resistance]]s to deal with (or cannot acquire them).
 ==History==

@@ Line 23: / Line 23: @@
 {{caption|{{Circleradius9|r=8}}|The area in which the spell of detect unseen reveal monsters, traps, etc.}}
-Within that area, the spell will detect all undiscovered [[secret door]]s, uncloak [[mimic]]s, reveal [[hiding]] [[monster]]s (including submerged [[sea monster]]s), reveal [[trap]]s, and mark the location of any [[invisible]] monsters with a {{white|I}} while removing any such markings where no monsters are present{{refsrc|src/zap.c|2165|nethack=3.6.7}}{{refsrc|src/detect.c|1455|nethack=3.6.7}}{{refsrc|src/detect.c|1574|nethack=3.6.7}}{{refsrc|src/vision.c|2747|nethack=3.6.7}} The spell's detection can 'penetrate' through [[cloud]]s on the [[Plane of Air]], and will similarly 'pierce' the water on the [[Plane of Water]].{{refsrc|src/vision.c|2764|nethack=3.6.7}} The spell has no effect if the hero is [[engulfed]].{{refsrc|src/detect.c|1578|nethack=3.6.7}}
+Within that area, the spell will reveal all undiscovered [[secret door]]s and [[Secret corridor|corridors]], uncloak [[mimic]]s, reveal [[hiding]] [[monster]]s (including submerged [[sea monster]]s), reveal [[trap]]s, and mark the location of any [[invisible]] monsters with a {{white|I}} while removing any such markings where no monsters are present{{refsrc|src/zap.c|2165|nethack=3.6.7}}{{refsrc|src/detect.c|1455|nethack=3.6.7}}{{refsrc|src/detect.c|1574|nethack=3.6.7}}{{refsrc|src/vision.c|2747|nethack=3.6.7}} The spell's detection can 'penetrate' through [[cloud]]s on the [[Plane of Air]], and will similarly 'pierce' the water on the [[Plane of Water]].{{refsrc|src/vision.c|2764|nethack=3.6.7}} The spell has no effect if the hero is [[engulfed]].{{refsrc|src/detect.c|1578|nethack=3.6.7}}
 {{upcoming|NetHack 3.7.0|The spell of detect unseen can also detect [[door trap]]s and [[container trap]]s, and will additionally display a brief flashing animation at the locations where something was detected&mdash;it will then print a message summarizing what was detected, including if nothing was detected.}}

@@ Line 1: / Line 1: @@
 {{languages}}
-{{spellbook|name=detect unseen|level=3|type=divination|turns=8|direction=non-directional|equiv=[[wand of secret door detection]]|abundance=2.03%}}
+{{spellbook
-This spellbook allows you to learn the '''detect unseen''' spell, which has the same effect as a [[wand of secret door detection]].
+ |name=detect unseen
-== Effects ==
+==Generation==
-{{main|Wand of secret door detection}}
+Spellbooks of detect unseen make up {{frac|50}} (2%) of all randomly-generated spellbooks. General [[store]]s, second-hand bookstores and rare books stores can stock spellbooks of detect unseen.
-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 [[cloud]]s.
+Writing a spellbook of detect unseen with a [[magic marker]] uses up 15 to 29 charges.
-{{caption|{{Circleradius9|r=8}}|Area in which traps etc. are revealed}}
+==Description==
-== Strategy ==
+{{caption|{{Circleradius9|r=8}}|The area in which the spell of detect unseen reveal monsters, traps, etc.}}
-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 [[portal]]s 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 [[trap]]s they cannot acquire [[resistance]]s to.
+The spell's detection can 'penetrate' through [[cloud]]s on the [[Plane of Air]], and will similarly 'pierce' the water on the [[Plane of Water]].{{refsrc|src/vision.c|2764|nethack=3.6.7}} The spell has no effect if the hero is [[engulfed]].{{refsrc|src/detect.c|1578|nethack=3.6.7}}
 [[Category:Spellbooks|Detect unseen]]

← Older revision		Revision as of 12:28, 25 June 2025
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		+	{{languages}}
	{{spellbook\|name=detect unseen\|level=3\|type=divination\|turns=8\|direction=non-directional\|equiv=[[wand of secret door detection]]\|abundance=2.03%}}		{{spellbook\|name=detect unseen\|level=3\|type=divination\|turns=8\|direction=non-directional\|equiv=[[wand of secret door detection]]\|abundance=2.03%}}
	This spellbook allows you to learn the '''detect unseen''' spell, which has the same effect as a [[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]].