The Locket is an armor item found in Asgore's Home. It is Heart Locket's Genocide Route counterpart. Its offensive counterpart is the Real Knife. It is the Genocide Route armor item associated with the first human.
- Despite being the toughest armor in the game, it never sees any real use as it is found right at the end of the Genocide Route, as Sans, the last enemy of a Genocide Route, always deals one damage.