Spellbook of invisibility
|spellbook of |
|Base price||400 zm|
|Turns to read||15|
|Ink to write||20–39|
|Power cost||20 Pw|
|Equivalent||potion of invisibility|
In NetHack, the spellbook of invisibility can be read to learn the spell of invisibility. It is a level 4 escape spell, and the spellbook takes roughly 15 turns to read. It is the special spell for Rangers.
There is a ~2.54% chance that a randomly generated spellbook is a spellbook of invisibility.
A spellbook of levitation requires 20 to 39 charges from a magic marker to write.
The following information pertains to an upcoming version (NetHack 3.7.0). If this version is now released, please verify that it is still accurate, then update the page to incorporate this information.As of commit f83a57c5, the spell grants more turns of invisibility, like an uncursed potion of invisibility.
Though this spell might be useful if you want temporary invisibility that does not prevent you entering shops, there are multiple sources of both temporary and permanent invisibility (e.g. via wand, ring, cloak, or potion) that are more convenient. At worst, if you are permanently invisible in a way that cannot be undone, you can still enter shops using a mummy wrapping or teleportation; permanent invisibility is often easier to obtain than the spell itself, and Rangers in particular are very unlikely to make much use of this spell before they find a mummy wrapping.
One niche use for the spell is to cast it before eating a stalker corpse to make the invisibility permanent and gain the see invisible intrinsic - even then, other methods for this niche are more available in comparison to the spell, to say nothing of having a ring or cloak that can ideally be worn and removed at will.
The spellbook of invisibility is introduced with all other spellbooks in NetHack 1.3d.
Some variants make the spell of invisibility more viable, usually as part of re-balancing spells.
In FIQHack, invisibility is also a spell that can be maintained and kept in effect.
In xNetHack, the spellbook of invisibility is no longer randomly generated, but can still be written or wished for. It is now a level 1 escape spell, making it far easier to write and cast, and permanent invisibility is also no longer available as an intrinsic (though extrinsic sources are unchanged). This gives the spell much more of a use case compared to vanilla NetHack.
In EvilHack, the spell of invisibility is lowered to a level 3 escape spell, making it more feasible for Rangers and some other roles to utilize; this also makes the spellbook an eligible candidate to generate as part of a Wizard's starting inventory.