Books in the Atlantis series

When Atlantis sank, it took with it a prison holding the worst monsters the earth had ever seen, and it needed something more powerful to guard them. Vampires. A race of humans, Descendants of Atlantis, once held captive by a stone that took their will and made them happy blood slaves, had gained their freedom from the Vampires of Atlantis, but the Descendants never stopped fearing the blood-suckers who had once enslaved them. When an unspeakable monster escapes its Atlantean prison, it's Ian's job to track it above the waterline and bring it back. Ian's quest is derailed by the woman he finds seconds from death. Can he convince her to help him save the Descendants of Atlantis from a vampire and his monster minion? Will she turn against him when she finds out what he is, what she is, and what he's willing to sacrifice for the greater good?

You are braver than you believe.The fabled land of Atlantis faces annihilation again. This time, after the earthquakes, black holes appear to suck everything within reach into dark nothingness. After two years of failing to find a way back to Atlantis, fourteen-year-old Adam Danburg wants nothing to do with the special place. Then ancient forces pull him into the city once again. Conflicting prophecies, mistaken beliefs, and shifting time conspire against Adam, along with Orri, Tya, and Caileen, stopping them from saving Atlantis. Adam must discover the right path to battle the evil forces before Atlantis is swept into the black void.RETURN TO ATLANTIS is the second book in the Atlantis series from Aurora Finalist J.M. Dover.