Grace and Connor Tempest discover the shocking truth of their true identity. What they learn creates a deep rift between the twins and casts a dark shadow over their future. Rebel Vampirate Sidorio is intent on expanding his empire but finds himself distracted by the bewitching Lady Lola Lockwood, aka Black Heart. With her love of blood baths, a shipboard 'winery' and a boundless ambition, will the merciless Lady Lola prove the perfect ally or a deadly rival? Responding to a devastating attack at the very heart of Pirate Academy, the Pirate Federation commissions its first dedicated ship of Vampirate assassins and places its newest captain, Wu Cheng Li, in command. The oceans have never been as seductive, nor as dangerous...