Vespera is an immortal dimensional guardian with no memory of her past, sworn to keep the gate to the Void sealed atop an obsidian altar. One night Caelen, a rebel prince of the Aethelgard Sky Kingdom accused of stealing the Primordial Heart, crashes through the sky at her feet and claims to know who she really was. With the kingdom's Inquisitor assassins on his trail and the seal cracking around them, Vespera must decide whether to trust the stranger who says he crossed collapsing timelines to find her.
