What Is The Complete James Rollins Sigma Series Book Order?

Kieran Hunt is a deadly omega bodyguard who never submits. Until he's assigned to Elliot Sinclair, an arrogant S-Tier alpha whose pheromones shatter his control. One forbidden night. One failed suppressant. Now Kieran's carrying the alpha's twins, and Elliot refuses to let his omega go. Ever.

Elias has lived his whole life as a lie. Born a male Omega in a world where his kind are owned, traded, or bred, his only chance at freedom was to disappear behind a forged identity. Now he’s “Eli Arden,” Rank 2 at the most ruthless Alpha academy in the nation. No one suspects the truth; Not the instructors. Not the students. Not even the wolves who want to beat him. Only one person watches too closely. Ronan Vesper: Rank 1, cold-blooded, terrifying, heir to an Alpha dynasty—and the one Alpha Elias can’t afford to provoke… or attract. But suppressants are failing. Instincts are waking. And when Ronan catches Elias mid-dose, something shifts between hunter and prey. He should have exposed him. He didn’t. Now Ronan is circling him like a secret he wants to own. And Elias is running out of time to keep his body and identity under control. In a school where the weak are erased and the powerful take what they want… What happens when the deadliest Alpha discovers his greatest rival is an Omega?

Elle Davidson, orphaned at 12 with limited memory, is taken in by the Alpha and Luna of the New Moon pack. There she meets Damon Ledger, the future Alpha, and her nemesis. Damon does everything he can to control Elle's life, and his friends do everything they can to make her life hell. All of that changes after Damon comes home from Alpha training, and their undeniable chemistry makes staying away from one another impossible. What will happen when Elle's past finally catches up to her, revealing unknown enemies and a secret identity? Will Elle be able to fight the increasing attraction she has for Damon? Or will she succumb to the lust she feels, risking everything? This is book 1, can be read as a standalone. The Silver Run Series: Possessing My Alpha- Completed Possessing My Mate- Completed Possessing the Gamma- Ongoing; 5-6 updates weekly.

Power. Obsession. Pleasure. Pain. Behind every Alpha lies a dangerous hunger—and these men don’t ask for permission. They take what they want. Sinful Alphas is a scorching collection of interconnected dark romance stories featuring dangerously possessive Alphas, forbidden desires, obsessive love, and heroines who find themselves caught between temptation and destruction. From ruthless pack kings and morally gray billionaires to primal mates, secret arrangements, revenge seductions, and enemies who crave each other far too much, every story explores the intoxicating line between dominance and surrender. These aren’t sweet love stories. These are tales of obsession so consuming it burns. Passion so addictive it destroys. Desire so sinful it feels dangerous to crave. Inside this collection, you’ll find: * Possessive Alpha males * Enemies-to-lovers tension * Forced proximity * Forbidden attraction * Mates, secrets, betrayal, and obsession * Explicit spice, emotional chaos, and addictive twists Some loves save you. Others ruin you beautifully. Enter at your own risk.

I’m trained to do one thing: kill. I was put into a school where the concepts of love and forgiveness were treated as weaknesses. When I graduated, they told me I’d be lucky to survive; now I’m the best of the best and the person who gets the job done no matter what. I’ve assassinated Presidents, housewives, Navy SEALS and more shifters than I can count. I have more kills than anyone in my business, so when a new order comes in to kill Alpha Gideon, I take it without a second thought. ​He’s a job like any other, but during my scouting, I see something I’ve never seen before. Alpha Gideon isn’t a tyrant or a bully; he’s kind to his Pack. I start asking questions, which is when everything goes to shit. My signal is found, and for the first time in my life, my target has me in his sights. I expect pain and maybe even death, but Alpha Gideon treats me like a welcomed guest; his warmth and kindness open up something inside of me that I didn’t know I had. I should kill him before he changes me completely. I tell him I’m cold and heartless, and he laughs. Loving a mark has never been done, but no matter what I do, every touch sets me on fire and with each longing glance, my past becomes a distant memory. I’m ready to put everything I was aside to stay with Alpha Gideon when the call comes in; my fellow assassins have been called. The bounty on Alpha Gideon has been doubled. I have two choices: protect the man who has opened up my heart or kill the target and get the job done.

They sent me into the snow to die a sickly omega with a heat-soaked scent and poison on my skin. I was nothing to my pack but a sacrifice to the monster they feared most. The rogue alpha should have killed me. Instead, he inhaled my scent and went still. “Mine,” he growled and I felt the bond slam into place like a cage I never asked for. I was his fated mate, bound to the most dangerous wolf alive. And my pack’s executioners were already closing in. But when my scent later calls to a second alpha—and a third—the world we know begins to burn. I’m no longer the weak omega they threw away. I’m the nexus of a multi-mate bond that could shatter the pack order forever. The question is: will my mates destroy each other for me… or will we forge a new world from the blood of the old?