Sword of Secrets

A Sentient Blade that was rescued (taken) by Sir Chadwick Morthanworthy from the dungeons of Castle Candor, and serves as one of his weapons.
This blade knows various secrets, including the locations of secret rooms, but it only remembers them near the secret's location.
Despite its secret knowledge, the Sword of Secrets is incapable of keeping its magical mouth shut. It can be presumed that the Sword of Secrets was locked in the dungeon due to the potential danger, if it were to fall into enemy (player) hands. Sir Chadwick Morthanworthy notoriously uses this tendency to establish the need for summary executions (in interest of the King).