Unavailable to most creatures, heart stones are traditionally only useful for the undead— creatures with a large empty chest cavity. In essence, they fill a special wear-location slot available to creatures who meet these requirements— the heart. They were typically crafted by liches for their minions or even themselves. Heart stones are known to affect negative or positive energy, often converting this energy to a polarity that is most beneficial to the wearer. Whether this was intentional or a fluke of design is debatable.
Heart stones are usually 5 to 10-inch crystals mounted on several bindings that affix the item securely inside the ribcage, in place of the heart. When secured, the item pulses with light in a rhythm similar to a beating heart. It takes as much time to secure and remove a heart stone as it does armor, due to complicated latching mechanisms and multiple fasteners. This means it is usually done outside of combat.
Section 15: Copyright Notice
Remarkable Races: Compendium of Unusual PC Races, Pathway to Adventure Edition. Copyright 2009, Alluria Publishing; Author: J. Matthew Kubisz