# Potion of invisibility

! 

Name

invisibility

Appearance

random

Base price

150 zm

Weight

20

Monster use

May be used by monsters as misc items.

Contents

1 Quaffing effects
2 Messages
3 Identification
4 Strategy
5 See also

Quaffing effects

Case

Effect

blessed

You become permanently invisible.

uncursed

You become invisible for 31 to 45 (more) turns.

cursed

You become invisible for 31 to 45 (more) turns.
All sleeping or meditating monsters on the level are awoken (aggravated).[1]

If quaffed by a monster, it becomes permanently invisible (unless it is wearing a mummy wrapping). If the potion was cursed, you are awoken and told the monster's position.
If the potion hits a monster, it becomes permanently invisible (unless it is wearing a mummy wrapping).

Messages

Message

Reason

"You have a peculiar feeling for a moment, then it passes."

You are already invisible or blind or wearing a mummy wrapping
You are not hallucinating

"You have a normal feeling for a moment, then it passes."

You are already invisible or blind or wearing a mummy wrapping
You are hallucinating

"Gee!  All of a sudden, you can't see yourself."

You quaffed the potion

"Far out, man!  You can't see yourself."

You quaffed the potion
You are hallucinating

"Gee!  All of a sudden, you can see right through yourself."

You quaffed the potion
You have see invisible

"Far out, man!  You can see right through yourself."

You quaffed the potion
You have see invisible
You are hallucinating

"For some reason, you feel your presence is known."

You quaffed the potion
The potion was cursed

"Suddenly you cannot see 

<monster>."

<monster> quaffed the potion

"<monster's> body takes on a strange transparency."

<monster> quaffed the potion
You have see invisible

"<monster's> body takes on a normal transparency."

<monster> quaffed the potion
You have see invisible
You are hallucinating

"For some reason, <monster's> presence is known to you."

<monster> quaffed the cursed potion

"You feel aggravated at the invisible <monster>!"

<monster> quaffed the cursed potion
You are already awake

"Aggravated, you are jolted into full consciousness."

<monster> quaffed the cursed potion
You were unconscious

"For an instant you couldn't see yourself!"

You inhaled the vapors
You are not already invisible
You are not blind

"For an instant you could see right through yourself!"

You inhaled the vapors
You are not already invisible
You are not blind
You have see invisible

Identification
This potion is very often identified for you when a monster quaffs it. It self-identifies only if you manage to observe yourself becoming invisible.

Strategy
See invisibility for details on being invisible.
A cursed potion of invisibility is useful for remotely waking up covetous monsters such as Asmodeus, Baalzebub, Orcus, or your quest nemesis. Quaffing the cursed potion will awaken all monsters on the level, and covetous monsters, once awakened, will quickly warp to you so they can attack. This saves you the trouble of having to make your way across the level to fight them, and if quaffed while standing on the upstair, it can allow you to prevent them from escaping to the level above while you fight them.
Except for the use case above, this potion is a prime candidate for dilution, as you rarely need many. It is best picked up to deny monsters its use.

See also
spellbook of invisibility
ring of invisibility
cloak of invisibility
stalker

This page is based on a spoiler by Dylan O'Donnell. The original license is:
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↑ potion.c in NetHack 3.4.3, line 696

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