Chalcedony - The Dragon Keeper Chronicles, #3

An Obsidian dragon is dead, a dragon keeper is missing, and Chalcedony learns a secret that will change her life forever. The quiet calm of Alannader is shattered when an ancient enemy resurfaces. The Dark Hunters, evil beings who kill dragons, and serpents alike, are making their way to Alannador. Chalcedony must join forces with an unlikely ally in order to survive.