Forced to kill by their diabolical demon boss, the immortal Indebted are doomed to a forever looming desperately before them. Their only chance at salvation is to find the right mate and be freed from this eternal servitude. But can love truly conquer the otherworld? The answer awaits in this high-stakes paranormal romance series. Immortal Flame: After a horrific accident, Peter Blackstone arrives in Allison La Croix's ER and heals himself before her eyes. Peter, an immortal, traded his soul to save his wife, and now he will hunt criminals forever. Can Allison find a way to unlock his forgotten, passionate soul? Relentless Flame: Indebted killer Dante Blackstone has the world at his feet. Every vice, any desire, is his for the asking--until he finds the one person he cannot have: sweet healer Hannah Miller, the one woman who could bring about Dante's destruction. Flame Unleashed: After Ruth Blackstone's husband repaid her sacrifice with betrayal 150 years ago, she's not willing to trust Cajun rogue Odie Pierre-Noir's risky plan to win freedom for all Indebteds. But as she and Odie find passion, her choice becomes clear: continue to lived a damned life but with Odie as her lover or risk their eternal souls for one chance to break the curse. Flame's Dawn: Undercover operator Jane Larson is caught up in a world she can't control or survive unless Barnaby Blackstone, a one-night fling from her past in Vietnam, is willing to bare his secrets to save her. Can they live with the man he's destined to be, or will the truth separate them forever? Sensuality Level: Sensual