The Underworld Series by Maggie Cole

From International bestselling author Maggie Cole comes her highly anticipated secret society, deliciously dark, next-generation Mafia series about two lifelong friends. Sean O’Malley Jr. and Zara Marino have a similar obsession with their fathers’ secrets, but discovering the truth requires them to surrender to each other and the unknown of their Underworld vows. If secrets and lies, desires and denials, bonds and betrayal didn’t exist, Sean O’Malley would stay my friend forever... moreFrom International bestselling author Maggie Cole comes her highly anticipated secret society, deliciously dark, next-generation Mafia series about two lifelong friends. Sean O’Malley Jr. and Zara Marino have a similar obsession with their fathers’ secrets, but discovering the truth requires them to surrender to each other and the unknown of their Underworld vows. If secrets and lies, desires and denials, bonds and betrayal didn’t exist, Sean O’Malley would stay my friend forever. That’s not the case. There are two things we’ve always wanted but were off the table. The truth about our fathers. Each other. So when a mysterious man shows up with a branded skull on his hand, speaking in riddles about an Underworld he claims we’re meant to reign in, it’s too tempting not to get sucked into the forbidden. Even if it means sinking deeper into the darkness, testing all our boundaries, and clinging to the friends we used to be and the vows we’re now bound to for eternity. Bride by Initiation is a standalone with interconnected characters, and book one of The Underworld series. This dark, secret society, Mafia, friends to lovers, forbidden, first real love, marriage pact romance is not meant for the faint of heart. Expect violence, taboo, and graphic scenes. less

The continuation of International bestselling author Maggie Cole's highly-received secret society, drenched in dark undertones, next-generation Mafia series about two enemy lovers never meant to be together until one action catapulted their arranged marriage. Now, Fiona O'Malley and Kirill Petrov will have to let go of their preconceived notions, emotional scars, and everything they knew to be true about themselves... moreThe continuation of International bestselling author Maggie Cole's highly-received secret society, drenched in dark undertones, next-generation Mafia series about two enemy lovers never meant to be together until one action catapulted their arranged marriage. Now, Fiona O'Malley and Kirill Petrov will have to let go of their preconceived notions, emotional scars, and everything they knew to be true about themselves. My brother arranged for me to marry a stranger, one marked with a diagonal scar across his face and a tattoo necklace on his hand. Neither disgusts me. They also aren't what scares me. Kirill Petrov's a sworn enemy of our family and King of the Underworld. A towering man with darkness in his gaze, an unspoken promise of what he'll do to me, and something so deep in his expression it hurts my heart. Yet the blaze of his allure only grows hotter, singing, until I can't resist him any longer… until I'm his Queen wearing his necklace night after night, staring at the beast inside his soul. If I could, I'd kill that beast until the world saw my husband as the man I see—the man I love. Except I give him my heart before I learn the full truth. And once you see the unforgettable, how can you go back? How can you forgive your husband for sins that aren't his, yet he's tied to? Especially when the people you love got hurt in the most vile of ways? Bride by Coronation is a standalone novel with interconnected characters and book two of The Underworld series. This dark, secret society, Mafia, enemies to lovers, forbidden, arranged marriage, and emotional scars novel is not meant for the faint of heart. Expect violence, taboo, and graphic scenes. less

Get ready for more shocking twists and Underworld secrets with Brax and Valentina's fake marriage! Cover and blurb reveal soon. Coming January 1, 2026 or possibly sooner.