Sonic Underground Logo

Dawn, a human girl who lived with her family in an underground bunker for most of her life finds herself getting thrown into a tight web after the night her little brother goes missing on a full moon night. She is helped by a vampire who happens to be her mate but doesn’t hear from him ever since. However, her life takes a mysterious turn when she finds out that she is mated not just to Zade, the vampire but to two other people, a ruthless werewolf Alpha, Xavier and his best friend, Ryan. Burdened with this, she’s made to make a decision, to choose whomever she wants to be with. Zade, the vampire was sweet to her but vampires were known for their slyness, they were trouble and she knows that. Moreover, she wasn’t ready to become a night creeper like them. The werewolves on the other hand are more like humans… her kind. She finds them more predictable and easier to cope with but that doesn’t mean she could cope with Alpha Xavier, the one who had sworn to make her life a living hell. She’s torn between making this decision and in the end, she chooses to be with all! Delve into this fascinating story that revolves around these people who are of different kinds but are forced to be together by a force greater than all. Love. Is Alpha Xavier who Dawn thinks he is? Was she even who she thought she was? And most of all, what dark secrets from their past binds them all? Read to find out!

Just as the Silverwolf Pack was about to fall into ruin, Blaise Larkin approached me and asked me to be his mate. I'd had a crush on Blaise for as long as I could remember. Now that my wildest dreams were about to come true, I was happy to form a mate bond with him. As I was the sole daughter of the Eastern Pack's Alpha, I was able to provide him with a mountain of resources by becoming Blaise's mate. One month after our bonding ceremony, I was expecting a pup. I was ecstatic, but before I could share the news with Blaise, I overheard something soul-shattering. "I wonder who fathered the pup of our pregnant Luna." "She probably got involved with some filthy Rogue. There's no way Alpha Blaise will let her give birth to that mutt, right?" If it weren't for those werewolves, I wouldn't know that Blaise was pretending we never mated. When I demanded answers in a deranged manner, he threw me into the underground prison and forced me to atone for the death of his first love. "If you didn't insist on becoming my mate, Susie wouldn't have left the pack—she also wouldn't have gotten slaughtered by Rogues!" Eight months later, I lost my pup in the cell I was imprisoned in and died, soaking in my own blood. When I opened my eyes once again, I found myself back on the day Blaise asked me to be his mate.

I was born with a one-track mind—I take everything seriously and do exactly as I'm told. When my adoptive father cursed a rival company, calling them bloodsucking vampires, I immediately went out, bought ten pounds of garlic and a crucifix, and stormed into their CEO's office to perform an exorcism. When my adoptive mother said she was willing to sell a kidney for the sake of the company, I contacted an underground black-market clinic on the spot and asked when they could schedule her surgery. Over time, no one dared joke casually around me anymore. Everyone in the family chose their words with extreme care, terrified I might take them at face value. That is, until the day of the family reunion banquet—when the fake heiress, who refused to leave no matter what, showed up as well. She hooked her arm through my brother's and flashed me a provocative smile. "Arista, Benji dotes on me the most," she said sweetly. "He said if anyone dares to make me unhappy, he'll chop them into pieces and dump them in the river to feed the fish." The banquet hall erupted in laughter. I was the only one whose face went deathly pale. The next second, I kicked my brother, Benji Collins, straight onto the dining table. I grabbed the silver steak knife and pressed it against his throat. "Everyone, stay calm," I announced loudly. "I've already called the police! For publicly advocating premeditated murder, desecration of a corpse, and antisocial personality tendencies… The minimum sentence is the death penalty!"

They thought he was just another runaway. They never knew she was a storm waiting to rise. After the tragic death of her parents, Alex a girl mistaken for a boy all her life was one step away from being dumped into a foster home. But instead of surrendering to the system, she ran. That night on the streets, she didn’t find safety. She found the mafia. Dragged into the brutal underground world of Vegas, Alex was forced to train like a soldier, live like a ghost, and survive like a killer. No one ever questioned her identity not when she could fight better, bleed harder, and keep her mouth shut longer than anyone else. They called her a boy. She didn’t correct them. Not when being seen as male was the only thing keeping her alive. Sent to Base Two, the deadliest tier of training, Alex learned to fight, spy, kill and to hide her real self behind layers of silence, steel, and scars. Years later, she walks the streets of New York, not as the scared runaway girl from the past, but as The Rival. A faceless vigilante by night. A silent infiltrator by day. And a weapon forged for one purpose: revenge. Alex isn’t just hunting criminals. She’s chasing the truth behind her father’s deathand every masked figure connected to it. But the deeper she digs, the more twisted the game becomes. Hidden enemies, familiar faces, and a web of betrayal that leads right back to the organization that made her. How long can she keep the mask on... before her real identity shatters everything?

Evelyn Ward never imagined that a routine walk home could shatter her life. Taken from her small Oregon town, she’s thrown into a velvet prison known as The Bidding Room, an elite underground auction where innocence is rare, and the most powerful men in the world come to buy it. Dressed like a doll, paraded as prey, Evelyn is thrust into a world of wealth, cruelty, and obsession. What should have ended in despair becomes the start of something more twisted - because the man who buys her isn’t a collector or a sadist. He’s something far worse. Lucien Moretti - The Devil of Verona - rules a vast criminal empire, built on fear and blood. He doesn’t pay for what he wants. He takes it. Yet something about Evelyn stops him. A silent challenge in her eyes, a trembling defiance that speaks louder than screams. He buys her not for pleasure - but to destroy what is pure. Except she doesn’t break. And that enrages him more than he expected. Their lives spiral in a dangerous dance of power and obsession. Lucien's enemies circle like vultures, and his own people begin to question his judgment. Evelyn isn’t just a girl anymore - she’s a symbol of his weakness, and they want to exploit that. As Evelyn is drawn deeper into the mafia world, her morality blurs. Can she resist becoming like them? Or is the darkness already inside her? In a story of violence, betrayal, and unnatural love, Evelyn and Lucien are caught in a storm they may not survive. And even if they do - what will be left of them?

"I thought I was paying a debt. I didn’t realize I was selling my soul." Lizaib "Iza" Moreno had one rule: Don’t look him in the eye. To save her father from a death sentence handed down by the city's most ruthless underground fixer, Iza enters a cold, calculated arrangement with Dark Valerius Thorne. He is a man of shadows, a predator who treats pleasure like a business transaction and emotions like a weakness. For six months, she belongs to him—no names, no strings, and absolutely no falling in love. But the dark has a way of swallowing you whole. On the final night of her contract, Iza disappears. She leaves behind the silk sheets of Dark’s penthouse and the suffocating heat of his touch, carrying a secret that could destroy them both: She’s pregnant with the devil’s heir. Six months later, Iza is living a quiet life under a new name, thinking she finally escaped the Thorne empire. But Dark doesn't lose what belongs to him. When he finds her—distressingly beautiful and visibly carrying his child—the "no-strings" arrangement is officially dead. Now, he isn’t just demanding the debt be paid. He’s claiming his family. As Iza is dragged back into his world of blood and luxury, she discovers a terrifying truth: her father’s debt wasn't an accident. Dark has been waiting for her since the very beginning. And this time, he’s never letting her go.

Meet Esmerelda Sleuth. Sleuth is her name and investigating is her game. (Paranormal Investigating, that is.) Esmerelda makes a good living as an investigator in a rather progressive firm. She lives a stable and sensible life until she meets Lance; an old money "hottie" who works for a real estate firm next to her building. After accepting an invitation for a weekend getaway party, she quickly discovers that Lance has a secret. He is wealthy. That part is true. And, yes, he's procured a job as a realtor in the building next door. His secret is that he belongs to an underground society of humans who didn't abandon their connection to magic centuries ago when religion declared it evil and he has traveled through time specifically to find her and bring her back to his time to marry him. If that isn't enough of a far fetched tale to absorb, he informs her that she was born in his time to a family belonging to that same secret society and was promised in marriage to him as an infant. When enemies who didn't want to see the union of families take place made attempts on her life, her parents sent her into the future and erased her memories of them as a precaution. Possessing virtually no belief in magic, ghosts, psychics, time travel, etc., it takes some doing on Lance's part to convince her to believe his story and go back with him. When she does, the lies, deceit and attempts on her life start all over again. Will she escape emotionally and physically unscathed? "The Other Side Of the Mirror" is a steamy-paranormal-romance- mystery-thriller and book one of the Esmerelda Sleuth series.

She was auctioned like an object, bought like a secret, and caged like a sin. After a brutal betrayal by the people she trusted most, Seraphina Vale is left drowning in debt and despair—until she’s sold at an underground auction to the one man every criminal fears: Lucien Marchesi, the ruthless head of a powerful mafia empire. Cold. Controlled. Deadly. The world assumes she’ll be discarded like the others who came before her. But Seraphina isn't a lamb sent to slaughter. She’s a lioness in velvet chains—calm, calculating, and waiting for her moment. Lucien didn’t expect her fire. She didn’t expect his scars. What begins as a twisted game of control and survival becomes something far more dangerous: emotion. As secrets unravel and obsession burns into something deeper, Seraphina edges dangerously close to what she swore she’d never feel again—trust. Love. Want. But she hasn’t forgotten her mission. Lucien was supposed to be her weapon, not her salvation. And when her revenge explodes into reality, both hearts will shatter under the weight of betrayal. Until he asks the one question that changes everything: “Have you ever loved me?” Chains of Velvet, Heart of Fire is a gripping dark mafia romance about love born from power, loyalty forged in fire, and two broken souls who dared to rewrite their fate. Perfect for fans of morally gray heroes, twist-filled emotional sagas, and heroines who take their power back—beautifully, mercilessly, and on their own terms.

My father scoured the underground markets and bought my sister and me a pair of twin wolf-blood slaves. Catherine snatched the tall, powerfully built brother first—his alpha scent already awakening despite the silver shackles. That left me with the scrawny, silver-poisoned "cripple" whose wolf seemed permanently dormant. I pitied the poor bastard. His wolf was so suppressed I could barely catch his scent, so I kept him close, hoping my presence might help him heal. His legs were useless, twisted from what looked like forced silver injections. I dragged him to every back-alley healer and rogue pack doctor I could find, desperate to purge the poison from his system. I figured some brutal werewolf hunter had shattered both him and his wolf. Until my dad's rival pack snatched us both during the blood moon. He exploded from his wheelchair in a surge of raw alpha power, his true scent hitting me like a freight train. Golden eyes blazing, when my father's enemy aimed a silver gun at my sister, he grabbed me and shielded her from six bullets. "I'm sorry, Catherine can't die. I'll make it up to you in the next life." That's when it hit me—he wasn't crippled, wasn't even an omega. The silver poisoning? That was all just for me. I blinked... and woke up on slave-picking day. This time, I set him free.

“You're nothing different from a rotten corpse if you don't have anything to prove." Origin Laurier is a young girl who was once an ally of an underground criminal organization called the Westside Dragons. She is hailed as the mafia’s killing machine, the Scarlet Beast, who only knew how to live as a tool for the mafia boss. Because of her deadly talisman ability, she never fails all of her missions. But the tables started to turn when she suddenly lost her ability and was kicked out of the mafia believing that she is not useful anymore. Origin is left homeless and scattered as she wonders how to regain her power and approval of the mafia boss she admires the most. On her path back to power, she stumbled upon a good-looking, yet emotionless guy who knew everything about her past, and stepped on her pride as a legendary assassin. He is W, the Student Council President of Greendale University, a school founded to protect the new generation of talisman users from being hunted down by scientists and evil organizations. W offered to help get Origin’s abilities back in exchange for forging an alliance with the Student Council who turns out to be members of a military agency called FEAR, Westside Dragon’s sworn enemy, secretly protecting and recruiting talisman users to Greendale. Upon joining the Student Council affairs, Origin will learn that there is more to humanity than she thinks. As her fate interconnects with the Student Council President who has a hobby of stalking her, how can she handle this new everyday life and her future that is uncertain of her relationship with the Mafia she grew up into?