Court of Twilight (Forbidden Magic)

Celeste thought she had escaped fate's cruel grasp, but the underworld has claimed her as its own.
Trapped in the dark kingdom of the Lord of Souls, she is no longer just a prisoner—she is the key to an ancient prophecy that could shatter the veil between worlds. Shadows whisper secrets, and the dead hunger for her power. Every moment she remains, her soul is slipping away.
Her mates—elemental princes bound by love and destiny—are desperate to find her, but the path to the underworld is sealed to all but one. The Dragon Prince, the only shifter able to walk between realms, must embark on a perilous journey through cursed lands and forgotten magic to bring her back to Allandria. But the deeper he travels, the more the underworld demands from him, testing his bond with Celeste in ways neither of them could have foreseen.
As Celeste battles against the Lord of Souls' dark influence, she must make an impossible choice: surrender to the darkness within her or risk losing herself—and her mates—forever.
The war between light and shadow has begun, and the queen of the underworld is rising.
Perfect for fans of dark romantasy, enemies-to-lovers tension, and slow-burn, high-stakes adventure.

K.N. Lee is a New York Times and USA Today bestselling author. She is the author of the Dragon-Born Saga, Eura Chronicles, Wonderland University, and the Chronicles of Koa series. When she is not writing twisted urban fantasy, epic tales of dragons, pirates, and mermaids, and dark poetry, she does a great deal of traveling and spending time with her family and Princess Polly, the pet pig. Wannabe rockstar, foreign language enthusiast, and anime geek, K.N. Lee also enjoys gaming and sketching. She is a winner of the Elevate Lifestyle Top 30 Under 30 "Future Leaders of Charlotte" award for her success as a writer, business owner, and for community service.