Spellbook of force bolt

Force bolt is a spell. Every Wizard starts NetHack by knowing this spell and carrying a spellbook of force bolt.

Zap the spell by pressing [Z], selecting the letter of the spell (starts at [a] for Wizards), then choosing a direction [yuhjklbn]. Use the spell to kill monsters and break doors.

Do not attack nymphs with this spell. Nymphs like to carry mirrors. If you manage to kill a nymph with this spell, the mirror breaks. In NetHack, your breaking of a mirror causes bad luck.