Three Trials. Three Masters. One Shadow. Solis never wanted a hero. As the Spooky Imp, she was never meant for the light—but she is the one chosen to seek the Obsidian Potion. To claim it, she must survive the Obsidian Scriptorium, a place where the air is thick with ancient ink and the weight of a thousand debts. But the Scriptorium is a cage guarded by the Servitude Masters, three shadows of the same soul who demand everything in exchange for the truth: Benjamin: The masked psychopath who finds beauty in the break. Pike: The Raven Shifter whose eyes see every secret you try to hide. Finch: The brilliant professor whose lessons are as seductive as they are deadly. Each brother holds a piece of the puzzle, and each intends to test Solis until there is nothing left of the girl she used to be. In the Scriptorium, the most dangerous thing isn't the dark—it’s the men who master it.