Upton Sinclair Novels

Ruby Sinclair has spent eleven years as a servant in the Gallagher pack, hiding her true identity as the last survivor of a slaughtered Alpha bloodline. Orphaned at seven when rogues destroyed her pack, she's endured relentless torment from the Gallagher quintuplets—five Alpha heirs who've made her life a living hell. To survive, Ruby has suppressed both her wolf and her deadly secret: she's a seer, the very ability that painted a target on her family. On the eve of her eighteenth birthday, Ruby's carefully controlled world shatters. Her first shift triggers early, and all five brothers simultaneously recognise her as their fated mate. But years of abuse have left deep scars, and Ruby wants nothing more than to escape the men who tormented her—mate bonds be damned. When Dr Reeves, the pack's trusted physician, attempts to drug and deliver her to the rogues who murdered her parents, Ruby's dormant powers explode. She kills him with a thought and teleports away, terrified of what she's becoming. As the quintuplets discover recordings proving they were systematically drugged for eleven years to hate their own mate, they must somehow earn back the trust of a woman who has every reason to reject them all. But a carved symbol on a dead rogue reveals the true threat: the Shadow Alpha, an ancient corrupted Guardian who has hunted Ruby's kind for millennia. A mystical wolf spirit reveals Ruby's destiny: she's a cosmic Guardian, and her five mates are meant to be her anchors. Now Ruby must decide whether to trust the men who destroyed her, or face an unstoppable evil alone.

Camilla's entire world shattered when her husband Nick Sinclair abruptly ended their three-year marriage, hurling divorce papers at her. His cruel, harsh words still echoed in her ears... "I'm done with this marriage. Get out of my house!" She always knew their arranged marriage was devoid of love, but she had clung to the possibility that he would one day grow to love her. However, the arrival of his first love, bearing a child she claimed was his, destroyed any lingering hopes and exposed the emptiness of their relationship. Fingers trembling, heart bleeding, she signed the divorce agreement. But the shock overwhelmed her just as she stepped outside Nick's mansion and she collapsed. Hours later, she awakened in the hospital, staring into the icy blue eyes of the stranger who saved her. ... Derek Donovan, New York's heartthrob and wealthiest billionaire CEO, had been searching for a way to deflect the media's attention from his status as a sought-after bachelor. In exchange for saving her life, he proposed a contract to Camilla: pretend to be his wife for three years to keep the press and paparazzi off. With no other options and no one to rely on, Camilla felt compelled to accept the proposal and sign the contract. But as they navigated the path of their fake marriage, the lines blurred. Derek's icy facade cracked, revealing a burning passion for Camilla. As Camilla's heart wavered, a shocking truth emerged: Derek's past hid secrets, and she was now entrenched in a deadly game of wealth, power, and deception. Will she risk everything to love again, or will the shadows of her past and the danger lurking in Derek's world destroy her forever? The contract has been signed, but the real stakes are only just beginning...

Vivienne Sinclair married Caden Lawrence, hoping her love would melt his cold heart and that he would accept her as his wife sooner or later. But as they say about the best-laid plans, Caden never fell in love with her, nor did he accept her as his wife in front of the world. Three years later, Vivienne is hurt and broken, wanting nothing more than to break this toxic cycle of betrayal and constant rejection. She wants a divorce. “What gives you the right to ask me for a divorce?” he roars, looking angry. “It was you who seduced me! You who insisted on getting married. And now you want a divorce? I don’t think so.” But Vivi is tired of playing the role of a loving and obedient wife. She wants to live her life and explore other options. She wants to find the happiness and joy she was deprived of in her marriage. With the help of her friends and family, Vivi reveals her other identity as the world-class jewelry designer, Jasper Sterling, a name she had built after years of hard work during her failed marriage. She is strong, confident, and capable of living life on her own terms. And it’s time to let the whole world know. During one of the success parties, when Vivienne walks in with a handsome man by her side, everyone starts whispering. “Who is he?” people want to know. “Is she dating him?” Vivi and her new companion look good together. They make a perfect couple. But when Caden sees her with this mystery man, he can barely contain his rage. He pulls her aside and hisses. “You are making a mistake.” She laughs, kisses his cheek, and says, “No, darling. This is the start of my new life.”

I was diagnosed with Wolf-Soul Decay Syndrome on my birthday, which meant I was on the verge of death. But my older brother, Alaric Sinclair, bought the only tube of Moonviolet serum—a serum capable of saving my life—just so he could give it to my younger adopted sister, Megan Sinclair. He thought I faked my illness in order to attract everyone's attention. Because of that, I stole the serum when no one was looking and took it. That night, Megan drove away from home in tears, only to be met with a fatal car accident that took her life. I was cast out of my childhood home by my parents. Even my fiance, Kenneth Ravenscroft, who once vowed to protect me, hated my guts. Upon returning to my own home, I ended up dying in a fire that broke out. But what I don't expect is that I've traveled back in time to the third day before my demise. During those three days, I've given up on everything. When I mention that I can give away my spot at the marking ceremony, Kenneth praises me for being an understanding fiancee. When I hand over my design company, which is in the top 500 rank, to Megan, my parents are satisfied with me. "You've finally learned how to be selfless, Evie," they say. But Alaric grabs my hand and roars, "Didn't you claim that you'd never give those things away unless you die? Why are you giving them away now?" That's because I'm about to die, dear brother.

Sloan Vale isn’t just a billionaire—he’s a king in a world built on whispered names, silk-bound power, and decadent sin. By day, he’s untouchable. Polished. Controlled. But by night, he rules The Crimson Order, a secret society where the elite indulge their darkest desires and make deals sealed with blood and pleasure. He’s never had a reason to break his own rules. Until her. Ivy Sinclair is a broke, brilliant art student just trying to survive. When she delivers a painting to an exclusive event, she stumbles into a hidden world she was never meant to see. Sloan’s world. The moment he lays eyes on her, he knows she doesn’t belong. Too innocent. Too pure. Too tempting. She should have run. He should have let her. But instead, he offers her a choice: walk away and forget what she saw… or surrender to him and learn just how deep the rabbit hole goes. Ivy agrees but she’s not as innocent as she seems. As Sloan draws her deeper into his dangerous orbit, he finds himself addicted to her softness, her fire, her secrets. She awakens something in him that’s been dormant far too long. Obsession. Protection. Lust. But Ivy didn’t stumble into his world by accident. She’s running from something darker. Something deadly. And when her past collides with his empire, both of them will have to decide what’s worth more: power or passion. Vengeance or love. In a world where everything comes with a price… will she be his salvation, or his ultimate ruin?

I moaned out his name. "Damien, you are not trying hard to get me, yet .." He smirked and whispered to my ears. "I like being hard, Not "trying" hard." His hand grazed mine, sending a shiver straight to places I didn’t know I could feel. Damien’s smirk was wicked, his eyes dark with desire, and my body betrayed me with every glance. I wanted him, yet my heart longed for someone gentler, someone who could love me without burning me alive. Ethan’s soft voice behind me made my chest ache, reminding me there was a different way to feel alive...a way that felt safe, tender, and real. Torn between lust and love, every heartbeat became my dangerous game.” *** When Lila Sinclair’s mother is sentenced to life in prison, her world collapses. The only person who can take her in is her mother’s past lover, Sebastian Blackwood; a wealthy, commanding man with a family of his own. Adopted temporarily into his household, Lila finds herself living with two stepbrothers who will change her life forever: Damien, the dark, irresistible older brother who ignites every forbidden desire...and Ethan, the sweet, caring younger brother who makes her heart feel at home.But time is against her. Her adoption isn’t legal, and after one year, Lila must marry one of them to remain in the country. With 365 nights of temptation, passion, and secrets ahead, she must choose between the fire of lust and the warmth of love, knowing that every choice could shatter her world...

Isabella Sinclair, a thirty-two-year-old billionaire heiress, dislikes men and never intended to get married. However, her convictions were put to the test when she had a one-night stand affair with a strange guy, Liam Blackwood. ********** Liam grabbed her wrist tightly and in a swift movement, he lifted her and dropped her on the bed. He pinned her hands on the bed with one hand, while the other hand slowly caressed her lower abdomen. A sudden gasp escaped Isabella’s lips as his gentle touch landed on her lower abdomen. He leaned into her and moved his lips near her ear. She flinched in fear. ‘Are you going to bite me like I did? Don’t be petty!’ she snapped sharply as Liam’s lips grazed her earlobe, his breath fanning against her skin. He chuckled slightly at Isabella’s outburst, and in an unexpected move, he flickered his tongue into her ear. She froze! She liked it and wanted him to do it again, but instead, he whispered, ‘Young lady, have you forgotten? No contact! Why do you keep throwing yourself at me, little girl!’ “What! ‘Little girl’? How dare he!” she screamed in her head, but in reality, she liked how possessive and dominant Liam is. He freed her, releasing his tight grip on her hands and jumped off the bed. He grabbed his car keys from the bedside table and walked towards the door. “Liam! The contract! Do you want me to change it? And by the way, this is your second night here, and you haven’t given me a foot massage yet,” Isabella called out as he placed his hands on the doorknob.

“We’re friends,” I said, voice barely steady. Aaron’s lips curled, slow and cruel. “No, we’re not.” “Friendship’s too pure for this.” His hand slid to my waist, hot and claiming as he yanked me flush against him. “Do friends kiss like this?” He kissed me. Hard. Possessive. “Or grab each other like this?” A squeeze to my ass. A gasp. “Or think filthy little thoughts?” His breath burned against my ear. “Touch themselves to it?” My cheeks flamed. My body betrayed me. “Stop lying, Venus.” His voice was a growl. “I feel it. Every time I’m near you.” I whispered, “But you don’t even like me.” His smile was pure sin. “I don’t have to like you to fuck you.” Then the offer: “Let’s get it out of our system. No lies. No strings. Just truth.” He grabbed my chin, eyes lit with hunger. “Say the word, princess.” A whisper against my lips— “I’ll ruin you.” And God help me… I wanted him to. --------- Aaron Sinclair needs a bride to claim his inheritance. Venus Astor needs a miracle to save her dying mother. What begins as a cold contract marriage spirals into a dangerous game of buried trauma, stolen identities, and forbidden attachment. He’s ruthless, closed off, and refuses to love. She’s resilient, lost, and refuses to stay unloved. But when secrets unravel revealing a stolen childhood, a tragic past, and a vengeful stepmother, their fake marriage is the only thing standing between them and destruction. In a world ruled by power and silence, will love dare to speak first or break them both instead?

Eoin Sinclair is the crowned Prince, son of the Werewolf King and Queen. His mother is the legendary Green wolf. He is to be the next King. He agrees to mate his girlfriend Amira after all she is the Princess of the Sirens and raised to be Royal. She knows how to be a calm, submissive, Luna. Kayda is a fire dragon werewolf hybrid her father Danny is the Warrior Gamma of the Royal Pack. Dottie her mother is the last pure bred fire dragon. Kayda realises her relationship with Eoin might not be what she assumed. After all, he thinks she is immature, unruly, and childish, and those are the reasons he has told her to her face. No way they're mates. ***** *** ******* "This isn't wrestling." Eoin grunted. "I could easily throw you off." he added. "But you haven't." I grinned, shifting my hips slightly. "Because I don't want to hurt you." he said. " Get off." he added through gritted teeth. "Nope Prince." I smirked, emphasising his title Prince and popping the P disrespectfully. "Besides, you already hurt me, so kiss it better." I smirked, leaning dangerously low to him and pushing out my split lip. "Kayda." he growled in warning. "Last chance, get off me." "And if I don't, do I get that spanking?" I asked . Eoin snapped. I saw it happen in his eyes. I had pushed him to his limit. He swiftly stood up with me in his arms and walked a few paces. Before I knew it, he had me bent over a fallen tree log on the edge of the clearing my head and upper body over the log and my butt in the air. ******* ********* ***** Will the future Kings Flame burn him, or will it set him on fire? Book 3 of the Green Wolf series.

In the Sinclair pack, I had always been different. Years ago, my grandfather saved the Elder’s life. To repay that debt, the Elder promised that one of his grandsons would become my mate. In my first life, on the night of the Blood Moon, he asked me, “Evelyn, who will you choose?” Blushing, I pointed to the brightest star of the tribe, Andrew Sinclair. But after our wedding, he kept me at a distance. I was confused—until one night, I opened the wrong door. Andrew was on one knee, clutching my cousin Clara’s portrait as if it were his lifeline. His body moved in a way that made my heart twist. My world collapsed. He had never loved me. His heart—his desire—had always belonged to her. Darkness swallowed me, body and soul. My husband lied to me and betrayed the oath we had sworn to the Moon Goddess. The cruel truth broke me, and sickness followed. I died with his child inside me—alone. But the moon gave me another chance. I woke again on that same night. The Elder smiled down at me. Four portraits lay before him. “Evelyn, tonight is your twenty-first rite. Who will you choose?” “You’ve always chased Andrew,” he said kindly. “It must be him—” “No!” The hall fell silent. “Grandfather… I don’t want Andrew.” In panic, I snatched a portrait. “I want him!” The boy on the page wore black. His skin was pale, his lips curved in a mad, crooked smile. William Sinclair. The sick wolf. The one everyone mocked. But I remembered how he had tried to help me find a good doctor. He was the only one who had cared about me when I was dying. And yes—this time, I chose him.