Which James Patterson Young Adult Novels Mix Romance With Mystery?

Jade has more than enough on her plate with overbearing parents and a 'little miss perfect' elder sister, to add the psycho leaving threat notes in her locker would be just too much. It could be some stupid prank or she could be in real danger, but she doesn't have the time to figure it out on her own. So when life hands her the possession of her school's bad boy's precious book, she trades it for his help in uncovering the person behind all this. The heat is turned up and things are getting interesting between the bad boy and his good girl as mysteries get solved and hearts learn to love........again!

“You are playing with fire, Alyssa,” he warned. “I’m trying not to lose control.” The emotions were roiling inside of her, building to something far greater than anything she’d experienced with any other man. Sometimes we run away from the one person we should be running to... *** From USA Today bestselling author and the author of Billionaire’s Secret Baby, comes a brand-new suspenseful romance about a socialite falling in love with the man ordered to protect her. With one hell of a twist, this steamy romance is a must read! Agent Scott Tabor was as sexy walking away as he was coming toward you. You know the kind of attractive that makes your mouth dry, and your palms sweat before you ever speak to the man? Yeah… that’s my reality. But let’s back up a second. It all started a few weeks after my parents died in a freak accident. While I was trying to grieve, my long-lost uncle came into the picture. At first, I thought Uncle Frank was trying to make an effort—until I came home to a nightmare. Forced to abandon my apartment, I turned to my lawyer and old boyfriend, Nate Livingston. Only his very pregnant wife wasn’t too happy with me hanging around. And who could blame her? Meanwhile, Uncle Frank was doing everything in his power to make my life a living hell. Enter Scott Tabor, FBI agent extraordinaire and my new roommate. I’m sure we can keep everything platonic. After all, we are both adults. Adults with wants, needs, and dare I say, an insane attraction for each other?

"A brilliant, aloof lawyer, Phin Younger has focused solely on his career and on helping people less fortunate. Living his life without romance? He’s just fine with that. Phin knows all too well how relationships make life messy and complicated. Until the day Emily Lassiter begs Phin to help her teenage brother. Beautiful but as fierce as a lioness, Emily is like no other woman he’s met. Suddenly, all of Phin’s plans to avoid romantic entanglements are thrown out the window the moment he sets eyes on Emily. A former model, Emily now struggles to make ends meet for herself and for her teenage brother Josh. When Josh commits a crime that could put him behind bars for years, she turns to her brother’s court-appointed lawyer, Phin Younger, for help. But Emily never expected that her brother’s lawyer would be young and handsome. And she definitely never expected that Phin’s kiss would heat a need inside her that soon transforms into a conflagration. When these two can no longer deny their feelings for each other, an embittered rival of Phin’s threatens to destroy his career, dragging Emily into the scandal. Now these star-crossed lovers must overcome the fears that hold them captive—or face a future without the love that could set them both free."

Isabella Harrington is twelve years old when she is adopted by the Gray family. Henrietta Gray is her mom's friend who takes her under her wing after her parents' death.  However, the moment she sets her eyes upon their younger son, Weston Gray, six years older and a typical bad boy, she knows that he's trouble. Can she deny the attraction that she feels since the moment they clash with one another? Can she deal with the tornado called Weston Gray? With every moment spent in his company being charged with emotional upheavals, how will the innocent Isabella save her heart? Can she forget the moments spent with him when he leaves home for his further studies? What will she do when he returns back with a girlfriend? What will she do when she realizes that she has fallen for him? What will she do when his girlfriend announces their upcoming wedding?  Will Weston Gray own up to his true feelings for the girl he had set his eyes upon since she was twelve years of age? Or will he marry a girl he has no feelings for? Read Isabella's story as she falls for her foster brother and the upheavals that she goes through. With plenty of twists and turns, this powerful and passionate love story will surely make you emotional!

Undercover Hearts is a contemporary romance thriller featuring two professional liars who find themselves investigating the same crime from opposite sides. Sophia Chen is an investigative journalist who goes undercover as "Sophia Sterling.” She poses as a wealthy tech heiress to infiltrate Platinum Connections. An exclusive matchmaking service where wealthy clients are mysteriously dying or losing their fortunes. She believes owner Marcus Blackwood is running a blackmail and murder scheme. Marcus Blackwood is an undercover FBI agent. He co-owns the business as part of a long-term federal operation, with his childhood friend Elena Vasquez handling day-to-day operations. When Sophia appears, Marcus suspects she has ulterior motives. Neither realizes they're both good guys pursuing the same case—or that Elena is the real villain orchestrating everything from the shadows. The story follows their immediate, intense attraction as they circle each other with growing suspicion and undeniable chemistry. Both are expert lie-detectors thrown off balance by someone who matches their intelligence and perception. Through disastrous client dates, psychological evaluations, and increasingly personal conversations, they engage in a dangerous dance of deception while fighting feelings that threaten to compromise their respective missions.

“Do you want me to show you?” he asked. I nodded, unable to find my voice. He stepped closer, his presence overwhelming, and before I could react, I was lifted off my feet and placed onto the bed. His gaze lingered on me—dark, unreadable, dangerous in a way I didn’t fully understand. I should have stopped this. I should have walked away. But I didn’t. He leaned in slowly, his voice low near my ear. “You sure about this?” My breath caught. Then, just as quickly as the tension built, he pulled back. “Think carefully,” he said coldly. “Before you decide what you want.” And then he left me there—breathless, confused, and completely undone. From an unnoticed calculus nerd to the sudden focus of the school’s most dangerous distraction—the principal’s son—everything in her life begins to change. He’s the kind of boy everyone warns you about. And now, he’s the only one paying attention to her.