The guardians were created for protection, but they were used in the past to protect a power-hungry vampire. Made of stone, they're all impervious to harm, but their hearts can still be broken. All three books surround the same faction of gargoyles, but each highlights a different fated mate couple. Each book can be listened to as a stand-alone but best enjoyed as a paranormal romance series.
Book One: Stone Under Skin
Book Two: Blood Beneath Stone
Book Three: Stone Hearts