Dracula’s Bloodline Series by Ana Calin

Tristan DeKnight is Lord Dracula's left hand. He's hard, ruthless, and never fails in his missions. But when he's sent to deliver a secret potion to Isolde Serpaint, Dracula's extended family, things go terribly wrong.Tristan meets Isolde's abusive husband, Mark, and all bets are off - they've met before, and they owe each other a debt of blood. Problem is, Tristan is trapped among Mark's men, a lone vampire among serpents... moreTristan DeKnight is Lord Dracula's left hand. He's hard, ruthless, and never fails in his missions. But when he's sent to deliver a secret potion to Isolde Serpaint, Dracula's extended family, things go terribly wrong.Tristan meets Isolde's abusive husband, Mark, and all bets are off - they've met before, and they owe each other a debt of blood. Problem is, Tristan is trapped among Mark's men, a lone vampire among serpents. To make things worse, circumstances force him and Isolde to drink the love potion that was meant for someone else. Soon, they are sucked into a forbidden love affair that may cost them both their lives.This is book five of the Dracula's Bloodline series, and has a HEA guaranteed. less

There's a fine line between hate and love. The seductress vampire Irina turned young scholar Lazarus into a vampire many years ago. He hates her for it, but now they're forced to work together on a mission to discover the secret to human immortality. Yet as Lazarus goes discovering Irina's terrible past and what turned her into a princess of seduction centuries ago, the line between hate and love blurs dangerously. Can Lazarus save Irina's doomed soul, or will he go down with it?

Dracula's son is one the most dangerous vampires that ever walked the Earth. They call him Michael the Bad because the only thing that matches his wicked good looks is his vicious nature. Every creature of the Underworld knows better than to cross him, but Angelique Serrano is only human. Now he's got a score to settle with her - but will he do it when he realizes that she's the key to destroying his oldest and most dangerous enemy?

Vampire prince Michael the Bad has a reputation—his breathtaking looks, his force, his control. But there’s a part of him that’s very different. A hell spawn lurks inside him, one that he’d rather keep forever dormant. But the time has come for Michael to face his strongest enemy, and for that he needs to become the beast.Problem is, the beast will demand something in return—to consume Michael’s fated mate, Angelique Serrano... moreVampire prince Michael the Bad has a reputation—his breathtaking looks, his force, his control. But there’s a part of him that’s very different. A hell spawn lurks inside him, one that he’d rather keep forever dormant. But the time has come for Michael to face his strongest enemy, and for that he needs to become the beast.Problem is, the beast will demand something in return—to consume Michael’s fated mate, Angelique Serrano.In order to win against his oldest enemy, Michael has to give himself completely over to the demon, and sacrifice Angelique to its dark desires. If he doesn’t, the war is lost, along with both their lives. Will Michael the Bad find a way to save his lover, or will he give in to evil, and forever become The Devil’s Son? less