Candelabrum of Invocation
|Name||Candelabrum of Invocation|
|Base price||5000 zm|
|Monster use||Will not be used by monsters.|
The Candelabrum of Invocation is a unique item required to perform the invocation ritual, which in turn is required to ascend in NetHack. Vlad the Impaler carries the Candelabrum at the top level of his tower, located in the middle of Gehennom. Before being formally identified, it simply appears as "a candelabrum," but this is not important because it is the only candelabrum that exists in NetHack.
To light the Candelabrum, you must first attach seven candles to it. Do this by applying the candles while carrying the Candelabrum. You can light or snuff the attached candles by applying the Candelabrum itself. It would burn as long as the shortest-lived candle you attach to it, but will lose half of the (remaining) time span each time you light it anywhere other than on the vibrating square.  The Candelabrum provides a light radius slightly larger than an ordinary lamp, so it is recommended that you minimize the time the Candelabrum is needlessly lit.
In versions prior to 3.6.1, attaching candles to the Candelabrum removes their weight from your inventory and makes them impossible to lose, so there is a small advantage to applying candles right away. On the other hand, you might light the candelabrum by accident. Given how rare the candles are, and that you lose half its remaining life span when you re-light it, it would be better to bag them separately until the last minute.
Because you will be using a magic candle, you better dump the Candelabrum immediately after the ritual. Otherwise, you risk attaching your only magic candle on the candelabrum, where it will be consumed like an ordinary candle.
Bell, Book and Candle is a Catholic excommunication ritual, although in the NetHack source code the candelabrum is sometimes referred to as a menorah, the seven branched candelabrum of Jewish ritual.
Faustus: Come on Mephistopheles. What shall we do?
Mephistopheles: Nay, I know not. We shall be cursed with bell,
book, and candle.
Faustus: How? Bell, book, and candle, candle, book, and bell,
Forward and backward, to curse Faustus to hell.
Anon you shall hear a hog grunt, a calf bleat, and an ass bray,
Because it is Saint Peter's holy day.
(Enter all the Friars to sing the dirge)