Some tools in this game are very rare. Some players may confuse the unidentified fire horn with another musical horn (such as the much more common tooled horn). Upon application, the game prompts the player for a direction; the fire horn then acts like a wand of fire, sending a beam in the desired direction, and is identified.
The fire horn is mostly identical to a wand of fire, except that it cannot be used for burn-engraving, can be recharged an unlimited number of times (up to a maximum of 20 charges at once), and deals 6 to 66 damage rather than 6 to 36 (depending on the circumstance).
An uncharged fire horn behaves as a tooled horn.
Fire horns can be found anywhere a random tool can be generated, and they will be generated with 4 to 8 charges.
You should identify an unknown horn as soon as possible - a fire horn is a good attack weapon but you don't want to discover that an unidentified horn is actually a horn of plenty when a horde of monsters has you pinned down at the end of a corridor. One YASD is to let the beam bounce from a wall and kill you - DYWYPI?
Answering no to the "Improvise?" prompt lets you use the horn as a musical instrument without using up any charges.
Players who want to wish for an instrument can ask for a "blessed fire horn"