Gift of Darkness by Isadora Brown

The Queen of the Shadows wants Kelia, and the Queen always gets what she wants.
Ever since Kelia escaped the breeding program at the Society, there’s been a bounty on her head. Shadows and Sirens alike are out to capture her and bring her to be tortured by the Queen, but for what reasons, Kelia doesn’t know.
Following her rescue from two different kidnappings, Kelia starts to realize that—as a human among supernaturals—she’s more of a hindrance than an asset. For the first time in her life, Kelia is the weak link. And the bounty on her head puts everyone in danger.
When those protecting her are murdered, Kelia is faced with an impossible choice: run and hide before more of her friends are killed…or sacrifice herself by giving the Queen what she wants—herself.
But with Drew steering his ship, his crew, and Kelia directly toward the Queen’s island, maybe fate has already decided for her.
Say goodbye to favorite characters, hello to new ones, and trust no one in Gift of Darkness, the third book in The Vampire Pirate Saga.