Spellbook of detect treasure

spellbook of +   detect treasure
Appearance	random
Base price	400 zm
Weight	50
Turns to read	15
Ink to write	20–39
Spell type	[[divination spells|divination]]
Level	4
Power cost	20 Pw

Allows you to learn the detect treasure spell. This spell has the same effect as a potion of object detection. It is the special spell for rogues.

Casting effects

Case	Effect
Unskilled or Basic	You detect objects on that level and exercise your wisdom.
Skilled or Expert	You detect objects on that level and exercise your wisdom. You know the appearance of all objects on that level (and in your and monster inventories) as if you had seen them.

Treasures detected are always real. If Nethack doesn't show the gold/gem symbol when you get to the marked spot, it means that the items are buried in the floor. Just dig a pit (apply a pickaxe down >) and you'll find the stuff.

N.B. Your wisdom is exercised if the only objects on the level are in your inventory, but not if there are no objects at all.

Messages

Message	Reason
"You have a strange feeling for a moment, then it passes."	No objects on the level. You are a beginner and not hallucinating.
"You have a normal feeling for a moment, then it passes."	No objects on the level. You are a beginner and hallucinating.
"You feel a lack of something."	No objects on the level.
"You sense objects nearby."	The only objects detected are in your inventory. You are not hallucinating.
"You sense something nearby."	The only objects detected are in your inventory. You are hallucinating.
"You sense the presence of objects."	Objects detected. You are not hallucinating.
"You sense the presence of something."	Objects detected. You are hallucinating.
"You sense the absence of objects."	No objects detected.

Strategy

Although hardly useless, the detect treasure spell offers a function for which a number of alternatives exist: e.g. a potion of object detection. Uses include the remote detection of vaults - they show up as four gold coins (provided they haven't been looted by you, or eaten by a rock mole):

$$
$$

This spell is also sometimes used in the Castle, as an easy way to detect where the chest containing the wand of wishing is.

Gehennom exploration gets more rewarding with it, because you can retrieve the better [[object]s without walking everywhere.

Source code references

This page is based on a spoiler by Dylan O'Donnell. The original license is:

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