Upton Sinclair Novels

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 Carter 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?

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?

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.

“ Caroline and Carl are my babies also. I am their father. You can’t keep them away from me. I won’t tolerate it. I want to be in their lives.” “ Oh yeah!? Now, you want to be their father? Now, you want to be in their lives?” I yelled back, “ Did you forget you never wanted a baby. You fucking asked me to abort them when I told you about my pregnancy.” I snapped, “ Not just that you fucking divorced me.” “ I was an idiot, dammit!” he shouted, slamming his fist on my office desk “ I was an idiot who didn't realize what he had in his life until I lost. I regret giving you a divorce. “ Good, now you live with this regret and the guilt you are feeling because I am not entering you back into my life and especially in my babies’ lives.” I snapped. “ Our babies!” he murmurs, looking at me. “ MY BABIES! ONLY MINE!” I yelled. Ariel Black was married to Ian Sinclair and lived a peaceful and happy life with him until one day, he came with a woman in his arm and demanded a divorce. She tells him that he can’t do that as she is pregnant with his child. Ian was so blinded in love for his ex-girlfriend Fiona that he didn’t see the happiness. After a few years, Ian’s eyes opened when he was betrayed by his lover Fiona and regretted. He regretted everything and started living with guilt until one day there, his path crossed with Ariel, and he found out that he is the father of twins. Now he wants Ariel and his children back in his life no matter what the consequences are, but most importantly, he wants Ariel’s forgiveness from her heart.

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.

“Let’s end this. Let’s break up,” he said, his voice cold. “Stacy is the only woman I’ve ever loved,” he continued, humiliating her in front of everyone at his birthday party. Cassia’s head spun as she stood there, unable to move or utter a word. For the past five years, she had put him first in everything, even choosing him over her career and future. She loved him so deeply that she wouldn’t have minded losing it all just to be with him. Her only desire was to have his heart, but despite all her sacrifices, when his first love returned, he chose her, neglecting Cassia and shattering her entire world. How was she supposed to pick herself up after giving everything for him? But Cassia was determined. She vowed to get back at him—and at everyone who underestimated her. After he chose his first love over her, she resolved to start fresh, become successful, and compete with Darvan’s company. This time, her revenge would be cold and calculated. She wouldn’t be swayed by emotions again. Now, however, she was torn between two charming men: a well-known senior in the design world and Darvan’s uncle, who controlled a significant portion of the family’s business shares. She wondered whether she should align herself with her senior or use Darvan’s uncle to bring down the entire family. Meanwhile, Darvan realized too late that he needed her back. He had fallen deeply in love with her. “Please, let’s get back together. I want to fight for us this time,” the famous Darvan Sinclair begged, dropping to his knees and pleading for her forgiveness. He would do more than just beg if it meant keeping her by his side again.

Emery Sinclair had spent years perfecting the art of being the perfect wife. The devoted, loyal, and elegant Mrs. Sinclair. Even when whispers of her husband's infidelity trailed after her like a ghost, she held her head high, convinced that love—her love—was enough to fix the cracks in her marriage. But the moment she walks into that hotel suite and finds her husband entangled with another woman, something inside her shatters. She doesn’t cry. She doesn’t scream. Instead, she walks away, her heart numb, her mind spinning. The life she built is over. The man she sacrificed everything for never deserved her. Then comes Killian Wolfe. Cold, calculating, and ruthlessly powerful, Killian is everything her husband is not. And he is done watching from the sidelines. For years, he’s kept his distance, biting his tongue as his foolish stepbrother squandered the one good thing in his life. But now? Now, Killian doesn’t hold back. He steps in—offering her a way out, a place to stay, and, most dangerously, a deal she never saw coming. "Let me take care of you," he tells her, his voice a low, commanding whisper. She should say no. She should run. Because nothing about Killian Wolfe comes without a cost. But the way he looks at her—like she’s something precious, something worth ruining kingdoms for—makes her wonder if, just this once, she should let herself be wanted. The game changes in a single night. A kiss turns into something more, and before she knows it, she’s tangled in his sheets, in his world, and in his control. But Killian doesn't just want her in his bed. He wants everything—her body, her mind, her soul. And most terrifying of all? He wants her heart.

I reach for the door handle, the cold metal biting into my skin as I press my thumb against the latch. Before I can pull the door open, Cade's arm shoots out from behind me, slamming it shut. My body jolts, my heart leaping into my throat as I feel the heat of his body against my back. He lowers himself to me, his breath fanning my ear. "Are you walking out on me again, Elysian?” A shaky breath parts my lips, the hair on the back of my neck standing on its ends. "I never walked out on you, Cade…" My voice falters, betraying me. "Don't lie to me." His tone is aggressive. "I told you a long time ago never to walk away from me again. Are you always so careless?” I try to swallow, but my throat is too tight. "I'm sorry," I manage, the words barely audible. "You said that already," he challenges me, warning me to choose my next words carefully. But I can't. I can't think. I can't move. As his grip on the door tightens, I realize he's not giving me a choice. ⊰ Heartprints in the Void ⊱ My name is Elysian Reign, and I'm not extraordinary. His name is Cade Sinclair, and unlike me, he is extraordinary. At the age of 25, he inherited billions from his trillionaire father—David Sinclair. You never imagine that the love of your life's own father would manipulate his son's life to get rid of you—even if it means forcing him into an experimental hypnosis treatment. After three years, you'd think I'd have learned my lesson. You'd think I would've changed my identity and left the country after walking in on my first day at my new and finding out that Cade is now my boss.

Ava Sinclair is drowning in debt, desperate to save her critically ill twin brother. With nowhere else to turn, she seeks help from Damian Blackwood—her ruthless, emotionless CEO. But Damian has problems of his own. As an Alpha who despises women, he’s being pressured by his powerful grandmother to marry within a week. Furious, he vows to marry on his terms. A drunken call mistakenly connects him to Ava, where he demands she find him a woman. She misunderstands, insults him, and calls him a pervert. The next day, Damian summons her, revealing he knows about her financial struggles. He offers her a deal—marry him in exchange for clearing all her debts. Ava agrees but sets strict conditions: no touching, no mistresses in their home, and no breaking the contract. Damian smirks, thinking it will be an easy arrangement—until his wolf stirs at her presence. Despite his hatred for Omegas, his possessiveness grows. His wolf whispers, She is ours. Mark her. But Damian refuses to accept it. His past—his mother’s betrayal—fuels his loathing for the mate bond. Yet, Ava fights back against his dominance, defying him at every turn. Tension simmers, jealousy flares, and his control begins to shatter. When a rival Alpha targets Ava, Damian is forced into battle—not just against his enemies, but himself. In a moment of desperation, his wolf takes over. He realizes too late—Ava is his mate. But she’s gone. Kidnapped. Enraged, Damian unleashes his fury, tearing through his enemies. When he finally gets her back, she is broken, unwilling to trust him. For the first time, Damian Blackwood begs. "Give me one chance, Ava." But she won’t be caged. Now, he must fight—not as an Alpha, but as a man in love.