Scroll of light

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? Scroll.png
Name light
Appearance random
Base price 50 zm
Weight 5
Ink to write 4-7
Monster use Will not be used by monsters.

Unless the player is confused, the scroll of light generates a permanent field of light or darkness. The field is a 9-unit radius field of light if blessed, a 5-unit radius field of light if uncursed, or a 5-unit radius field of darkness if cursed.

If confused, there is a 20% chance that a yellow light (if the scroll was not cursed) or black light (if the scroll was cursed) will be created next to you[1]. Otherwise, the scroll will have the same effects as a cursed scroll, but with a 9-unit radius if the scroll was blessed.

Messages

A lit field surrounds you!
You read a blessed or uncursed scroll.
You are surrounded by darkness!
You read a cursed scroll, or a scroll of any beatitude while confused. Messages that may be appended depending if you are wielding a light source:
Your <light source> goes out!
Your <candle>'s flame is extinguished.
Your light source is extinguished.
Suddenly, the only light left comes from Sunsword!
You are wielding Sunsword.

History

Creating a yellow or black light when confused was added in NetHack 3.6.0. Older versions of NetHack and variants will not have this behavior, and will always darken the room.

UnNetHack

In UnNetHack, reading a scroll of light while confused has a different effect than reading a cursed scroll. If blessed or uncursed, it will summon 5-10 Yellow lights scattered throughout the level. If the scroll is cursed, it will instead summon up to 15 Black lights.

Strategy

While useful for lighting up a single room, a more efficient option is using a wand of light, spellbook of light, or a lamp, brass lantern or other light source. Therefore, this scroll is a good candidate for blanking.

...xxxxx...
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Area lit by uncursed scroll

...xxxxx...
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Area darkened by cursed scroll

......xxxxxxx......
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Area lit by blessed scroll

References