Heart Locket

 is a passive item.

Effects

 * Grants a heart container.

Trivia

 * If the player has Shelleton Key, it grants an extra heart container.
 * The flavor text "Memento Mori" is a Latin phrase that translates directly into "Remember Death" or "Remember that you will die." It is a call to remember that all things must die and to enjoy and be thankful of life.