These creatures are fiends summoned only to kill. As their name implies, silent assassins do not speak, but understand any commands that they are given. When summoned, a silent assassin must be given a single target, which it pursues relentlessly until it or the silent assassin is slain. If destroyed, a silent assassin vanishes, drawn back to its home plane, leaving only its dagger behind. Legend holds that slain silent assassins are forced to endure millennia as lesser demons before their original forms are restored. A dagger left behind by a destroyed assassin cannot be used to inflict harm, but remains magical, with a +2 to hit and doing 3d4 + 2 piercing damage.