What Is The Complete James Rollins Sigma Series In 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.

The crowd starts a countdown to midnight like New Year’s Eve. I close my eyes and smile, holding Liam’s hand tightly. Everyone yells “ONE!” and cheers. I open my eyes and see the iridescent liquid light of the full moon pouring out of the giant orb flowing down over us. People around us ooh and ahh at the beautiful sight.  When the first rays of moonlight cascade over my skin, I feel a heat inside me turn into a burning fire. I gasp and look up at Liam. He looks at me with wide, surprised eyes. “Mate,” he murmurs and squeezes my hand tighter. It isn’t a comforting feeling. There are no sparks like people describe when they touch their mate. Maybe it takes a few minutes to develop. I smile and try to admire Liam, but I don't want to say it back. Nothing feels different. I still love him, but he’s not the one. Liam is looking at me, but it isn’t a look of true love. It’s lustful and carnal. I feel a pit in my stomach. Liam isn’t my mate. How can this be? And how was he able to call me his mate if he’s not mine? “Zara,” a woman’s voice says in my head, “My name is Lavender. I’m your wolf and you’re in grave danger, my dear. You need to run. You need to run now. Your life depends on it.” “My… wolf?” With everything that happened the past couple of hours, I forgot she was waking up. “L-Lavender, what’s happening? What do you know?” Lavender repeats her order. “Zara, you need to run. I can explain later. I’m so sorry this is happening to you, sweet girl.”

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.

Charity Conrad has plenty of problems, but being the Gamma isn’t one of them. No, her biggest issues are the two gorgeous men fighting for her attention. What's worse is the growing attachment she feels for both. She thought some time away would lessen her conflicting feelings for them, but upon her return she realizes just how wrong she was. With her eighteenth birthday rapidly approaching can she survive without someone getting their heart broken? Book 3 of The Silver Run Series. Can be read as a standalone. The Silver Run Series Book 1- Possessing My Alpha- Completed Book 2- Possessing My Mate- Completed Book 3- Possessing The Gamma- Near Daily Updates