d647950c_d___Game_Guide_and_Walkthrough__BONE_CHARM_PROPERTY
[BONE CHARM NAME] Carrion Killer [USEFULNESS] Not really useful. You can easily ignore it. [BONE CHARM PROPERTY] 
You receive adrenaline points for killing rats.
Bone Charms - list - Collectibles - Dishonored - Game Guide and Walkthrough
BONE CHARM PROPERTY