Spellbook of haste self
| spellbook of |
+ haste self
|Base price||300 zm|
|Turns to read||8|
|Ink to write||15–29|
|Power cost||15 Pw|
|Equivalent||potion of speed|
A spellbook of haste self allows you to learn the haste self spell. This spell gives you very fast speed temporarily, making it a potential substitute for speed boots or a potion of speed. At unskilled or basic, the haste effect lasts for 100–109 turns; at skilled or expert it lasts for 160–169 turns. Unlike a potion of speed it will not heal your wounded legs, but it will still exercise Dexterity when cast. It is the special spell for barbarians.
Most NetHack players achieve very fast speed by wearing speed boots. However, if you need both very fast speed and jumping, you can get the former from this spell and the latter from jumping boots. This combination can be very useful on the Astral Plane, but a potion of speed can be just as effective for the short duration required.
Haste self is cumulative; meaning, casting it multiple times extends the duration of the effect. A wizard with the Eye of the Aethiopica can stand in place for a while and cast haste self dozens of times to gain enough turns of speed to last the rest of the game, useful because it allows you to sidestep wearing speed boots; if the effect wears off, you can always just repeat the process.
Haste self is almost useless to its affiliated role: by the time they might be able to cast it, most barbarians will likely already have speed boots.