In a city where monsters wear human faces, Ember Kade makes a living uncovering secrets. But when a missing-persons case leads her to Club Obsidian, she discovers a world built on blood, fire, and lies — and three men who should not exist. They call themselves The Sinbound: Lucien, a demon shifter with power that drips like smoke and sin. Darius, a dragon forged from calm fury and molten gold. Riven, a half-demon hybrid whose smile hides a thousand scars. When Ember’s blood reveals a mark identical to theirs, she becomes their Anchor — the key that holds their power together. But the mark does more than bind; it awakens something sleeping beneath the city, a voice whispering in her dreams that she was never meant to be human at all. As Ember learns to command her gift, the world around her begins to change — storms obey her, streets glow with her heartbeat, and the men bound to her start to break under the pull of her power. Each secret she uncovers brings her closer to a truth older than sin: the Anchor wasn’t created to save them…it was built to cage her. Now the lines between love and destruction blur, the Gate beneath Obsidian begins to crack, and Ember must decide whether to protect the world — or burn it down and take her place as the fire that started it all.