Beethro Budkin, fifth-generation professional dungeon exterminator, was hired by King Dugan to clear the king's multi-level dungeon of a large monster infestation.
Beethro charges by the room, and as a professional, he is contract-bound to clear all the monsters from each and every room in the dungeon to get paid.
The only weapon Beethro needs to do his job is a Really Big Sword, which will defeat almost any monster in a single hit.