Enigma Books in Order

Isaac Holt is mysterious, dangerous, and the subject of Isabelle Brahn's FBI investigation. Their attraction turns a case into a morally complicated love story.

Ava returns after years away, forcing Hugo to face feelings he never fully buried. Their story begins with attraction, old wounds, and secrets waiting to surface.

Hugo and Ava's story continues after one decision changes everything. Old feelings, hidden pain, and the consequences of the past keep pulling them together.

Hawke and Gemma's romance begins after tragedy has already changed the shape of life. A second chance offers healing, but only if they risk being hurt again.

Paige travels across the country to finish a book and recover from heartbreak. Hunter, the neighbor next door, brings distraction, mystery, and a spark she did not plan.

Isaac and Isabelle's main Enigma arc reaches its emotional finish. Danger, devotion, and hard truths decide whether their love can survive the darkest gray areas.

Isaac will give up wealth, power, and reputation to protect Isabelle. As the mystery deepens, control becomes harder and the stakes turn brutally personal.

Isaac knows Isabelle is hiding something, and the truth may change everything between them. The second Enigma book tightens the romance, danger, and suspicion.

Brax Anderson is the kind of bachelor people notice, but Clara disrupts his easy control. Their romance turns attraction and resistance into one messy equation.

Ryan has loved Savannah since childhood, but heaven and hell can look a lot alike. Their story is a tender, angsty romance about first love's damage.

Ryan and Savannah's second book looks back at love, loss, and the years that shaped them. Their childhood bond still has power, even after pain.

Regan and Alex's push-pull romance continues after days apart feel far too long. Their connection faces another round of pride, longing, and unresolved tension.

Regan and Alex begin a romance full of clashing attitudes, class differences, and inconvenient chemistry. Their spark is fun, heated, and rarely polite.

Alex and Regan return with the same sharp banter and stubborn attraction. He is arrogant, she is classy, and neither makes love easy.

Cormack and Harlow's story proves sweetness is more complicated after life has turned sour. Their romance mixes playful heat with old hurt and new hope.

Brandon and Melody's story continues as protection turns more personal and more dangerous. Trust, fear, and loyalty tighten around them in this Enigma installment.

The Brandon and Melody arc reaches its final test as love and duty collide. He wants to shield her, but protection has a cost.

Brandon was raised to protect, honor, obey, and serve. Melody becomes the person who challenges every rule he follows in this first part of their story.

Isaac and Isabelle return for a wedding story that revisits the man behind the mask. It is a romantic Enigma check-in for longtime readers.

Blaire wakes with a hangover, missing memories, and a marriage to mob boss Rico. What sounds impossible quickly becomes a dangerous romance full of secrets.

Dr. Jae and CJ's story begins in a life built on lies, where trust is almost impossible. Desire pushes them together while secrets threaten everything.

Isaac Holt's side of the Enigma story reveals the loss, control, and longing behind his guarded mask. Read it after Isabelle and Isaac's original arc.

Isaac and Isabelle's Enigma journey comes to a high-stakes close. Their love faces kidnapping threats, exposed secrets, and the question of whether gray can become home.