Sonic Underground Shadow Novels & Stories

Extreme beauty, intelligence, and unique set of skills. Zea was only seventeen back then and everything in her life was perfect. But not until they killed her father and took away the man that she loves. Driven, she set out overseas and train to be the best special agent. And after nine long years, she's given an assignment. A dangerous, highly classified mission, as an undercover high school student. In a well-known university that is secretly run by a viciously organized underground syndicate, that is strongly linked to her father's death. Determined to seek justice. Everything is right in place. But not until she found him—again.

Kelsa was vehemently suppressed, humiliated, and trashed underfoot by the very people she called family. She was drugged by her rival and ended up having triplets for Darryl Shaw, a Trillionaire and the true Boss of the underground world. Kelsa is determined to find out who the father of her children is, and why her own family hates her to the core. But ended up being beaten to a pulp. Which caused her to almost lose her life. In her desperation and agony, she swore with her last breath that, she would survive and rise like a phoenix, and put all who trampled upon her underneath her feet someday!

Billionaire tech tycoon Damian Cross has spent his life building a legacy of cutting-edge autonomous vehicle technology, aiming to revolutionize transportation and safety. But his obsession with control and precision has left him emotionally detached and skeptical of human unpredictability—especially in high-risk activities like racing. On the other hand, Sierra Vale, a fearless street racer with a mysterious past, thrives on chaos and adrenaline. Known as the "Queen of the Circuit," Sierra races not for fame but for her underground mission: using winnings to fund her brother's secretive legal battle against a corrupt corporation linked to Damian's empire.

Lorenzo McLaren is an underground Mafia Lord who controls New York City. He does whatever he wants and gets away with it Mariana Martinez is a college student whose life is turned upside down when she is kidnapped and sold into a Mafia ring. She refuses to give up and accepts the life before her, fighting and looking for ways to escape. But her defiance is cut short when it grabs the attention of Lorenzo. Mariana falls first but Lorenzo falls harder. Will Mariana be able to ignore her morals and love Lorenzo even with his dark side? And will Lorenzo have to sacrifice his empire for the woman he loves?

Alpha Rhea, a fierce female commander, must protect her pack from an alchemist’s shadow army while navigating a soul-shattering mate bond with Elias, a man harboring a dark, monstrous secret.

A contract bride, a father's life saved, but she hides a heartbreaking secret: a son, the spitting image of him. How will a year-long contract end when the shadow of old vengeance threatens to expose the truth?

Sabiana Zoreta was bought for fifteen million pesos. At the very young age of twenty, she was being bid in an elite club. She was taken there to be sold and included in an auction. Kidnapped at the age of three by her father from her wealthy stepdad, she later questioned why he would sell her when she grew up. Could a father really sell his own child? For her father, the answer was yes. She was raised to be a commodity, but the man who bought her didn’t want her for just one night. He wanted her to be his lover—Lennox Montebello, a member of the underground organization, dirty, dangerous and dark.

Katherine had no choice but to pretend as Adam Beaumont's fiancee, and had to marry him. But turns out that Adam isn't just a rich businessman and a dangerous mafia lord, but also a supernatural being, a dark creature at night, a beast in people's nightmares. Would Katherine still accept him? And what if Adam isn't really who she think he is? That he has another name, which is Carter of the underground world. And what if she will discover a big mystery behind her identity? That she's not actually Katherine Sullivan but Eve Delluci, someone who has a big role in Carter's world.

Amelia never believed in the legends whispered about the forest. Until one night, beneath the full moon, her eyes met his—eyes that burned gold and promised danger. Shadow isn’t human. But he isn’t a monster, either. He is something ancient. Exiled. Desired. Cursed. He warned her: “I’m a problem you don’t need.” But she had already chosen him. And now… there’s no turning back. In a world where secrets breathe beneath the skin and packs don’t forgive weakness, Amelia and Shadow are fated to burn. Between howls, stolen kisses, and wars whispered in the dark, a forbidden bond awakens—a pull as fierce as it is fatal. A romance as wild as the full moon. A passion that could save them… or consume them both.

Kevin, the elite bodyguard I'd spent ten years training, chose my adopted sister, Eva, over me when it came down to life and death. So I went straight to an underground fight club and picked out the craziest, most ruthless bastard I could find. A month later, Kevin got word and came rushing back, dragging his battered body past the guards at my door, fighting within an inch of his life. He knelt on the floor, eyes bloodshot, clutching the hem of my dress. "Principessa, what does that scarred stray have that I don't?"