Upton Sinclair Novels

Handed over to the Billionaire Alpha as payment for her stepfather's debt Kyra Sinclair's life as she knew it was over. she was a clueless human thrust into the world of werewolves even worse when she finds out she's the Alpha's mate.

On the night of her engagement, Aria Sinclair catches her fiancé cheating, with the daughter of a rival mafia boss. Humiliated and shattered, She goes to a club and end up getting intimate with a strange man. On a quest for revenge for her fiancee's betrayal, she decides to marry his father. But what will she do when she finds out his father is the same man she encountered at the club?

Alessia Ferreira is Italy’s Mafia Princess and yet… she has absolutely no clue about it. She doesn’t know she’s being watched and targeted. She is worth millions and everyone wants their hands on her. Including him. Judas Sinclair is known around Rome for being a dangerous man, someone you should stay away from, a psychopath, a girl’s worst nightmare. He has issues on top of issues and the last thing he needs is a girl in his life after what he did to the last one. But his job is his life and when he gets assigned by The Boss as Alessia’s bodyguard, he has no other option but to obey. Alessia is in great danger but at least she has Judas on her side to take care of her… right?

We’ve all read them right? Those sappy romance novels, the ones where some handsome stranger rescues the damsel in distress. He’s wealthy like no other and adores the ground she walks on. There’s some life altering event, a struggle of some kind but it gets resolved and they live happily ever after. As cute as they are, and as much as those kind of books can distract you from whatever is going on, that’s just not how life works. Your daily tasks are boring as hell, you have to work your ass off with very little to show for it and if life throws you a curve ball it’s usually not some handsome prince but rather more issues to take care of. Real life just isn’t a fairytale and monsters aren’t real. Not in the fairytale sense of the word anyway. Right?? Meet Tara, after being abducted as a young girl, she unintentionally finds her way back to where she was born, completely unaware of the dangers she's about to face. She knows nothing about where she came from or who she really is. As it turns out, mosters are real and fairytales do hold some truth. Follow her in her quest to learn about her history and save all shifter-kind in the proces

“Tell me, Thalia, does it hurt to be cast aside, thrown to the wolves?” I laughed harshly, “Is this what it feels like? To be nothing? To be forgotten?” “Ronan… please…” Her voice was so soft, so broken that it almost made me feel sympathy for her, but in an instant, I crushed that emotion. I couldn’t allow her tears to sway me. “Don’t you dare cry,” I spat. “Save your pathetic, fake tears. They mean nothing to me now, just like you should have meant nothing to me then.” Thalia Sinclair was once a respected Luna, but her life fell apart when her mate rejected her and sold her to the cruel Rogue Sovereign. Forced to toughen up, she learned to survive alone, with no one to trust. Ronan Kane has waited for the moment to make Thalia pay for the hurt she caused him. But when their paths cross again, anger and pain mix with something neither of them can deny. Can they overcome their broken pasts, or will their scars keep them apart forever? Betrayal cuts deep. Vengeance burns hotter. Love is the deadliest weapon of all.

Seduced by the Billionaire is a sizzling collection of standalone short novels where powerful billionaires meet fierce, unexpected women who turn their worlds upside down. From scandalous contracts to dangerous secrets, each story dives into a world of passion, power, and emotional intensity—where every deal comes with a price, and falling in love is the ultimate risk.

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 a world where shifting and finding a mate means everything, Natasha is an outsider. Meet Natasha, a twenty-one-year-old halfbreed who's wolfless, mateless, and seen as the omega/lowest in Hayden Kingdom. She's always been looked down upon and treated poorly but things change when she meets William Sinclair, the mateless Alpha. As they journey through their quests to find their destined mates, they hatch a bold plan to fix their issues. They'll pretend to be each other's fated mate at the mating ceremony, showing themselves to be deeply in love, fooling the Alpha Council and all of Hayden into believing they're soulmates. This way, they can escape being matched by society's standards. But with so much at stake and the danger of getting caught, one misstep could mean getting exposed and facing severe consequences. Will their scheme work, will they get caught, or will their staged romance evolve into something more?

Twenty years ago, Thantos Abraxas, The Alpha of the Crescent Shadow werewolf pack went on a powerfueled rampage. Leaving every other pack with just one choice, bow down or die. He ripped through pack after pack, slaughtering it's members and forcing many others into hidding. Even worse, he destroyed every pack's wolfsbane plants, forcing them to lose control of their wolf selves during the full moon. Luckily the packs that hid were able to escape with some, but only enough for their own. Now, the Crimson River pack's wolfsbane is nearing complete depletion and the werewolves wont survive for long without it. The vicious killings of so many humans from nearby towns are beginning to draw hunters to the packs location. But luckily, there is still one hope left. Their Alpha, Grayson Sinclair, sends his nieces Malia and Iselyn to try and reason with Thantos in his old age for some of his wolfsbane. But will the girls be willing to compromise with the monster that put them in this situation to begin with? With the hunters closing in on their family, do they even have time to think about it? Will they even have a home to go back to? One thing's for sure. Grayson will never bow down to another. And neither will they.

Emily Carter thought heartbreak would be the end of her story—but it was only the beginning. After catching her long-term boyfriend cheating, she walks away shattered, determined never to look back. But fate has other plans when she crosses paths with Ethan Sinclair—her ex’s older, enigmatic brother—at a high-profile gala. Ethan is everything Daniel wasn’t: powerful, reserved, and dangerously captivating. He’s also off-limits. Yet when a single glance turns into a stolen kiss, Emily finds herself drawn into a world of secrets, passion, and power plays. But in Ethan’s world, nothing is simple. Public image is everything, and Emily quickly learns that being with him means staying hidden in the shadows. As emotions deepen and their secret affair intensifies, Emily must ask herself—how long can she be someone’s secret before she forgets her own worth? A story of forbidden desire, dangerous power, and the cost of loving a man who was never supposed to be hers.