Sword

is an object in the game.

This object isn't consumed upon usage.

Usage
can be used for:
 * Slaying the Basilisk: After the Basilisk has been unconscious, you can use the Bandit with the Sword to take the Basilisk's head.
 * Threatening the Princess: After talking with the Basilisk, using the Sword inside the Castle will threaten the King and Princess, and turn the Princess into a playable character.