Black Heart (Vampirates, Bk. 5)

There's a new ship of vampirates roaming the seas, leaving a trail of devastation in its wake. When a high-profile pirate is slain, the Pirate Federation launches a ship of dedicated vampire hunters, led by newly appointed Captain, Cheng Li. Amongst her dynamic crew is young pirate prodigy, Connor Tempest. Meanwhile, Connor's twin sister Grace enjoys a bittersweet reunion with their mother, Sally, who has some important and shocking news for her daughter. As Grace uncovers the truth about her family's past, she realizes that she and Connor face a daunting and uncertain future . . .