Sleep is supposed to be the one place you're safe.
Savannah Kumar has spent her whole life making peace with insomnia — until the night she wakes up bleeding from a cut she never felt, in a dream she can't quite remember. A hallway. A flickering light. And at the end of it, something wrong: a man-shaped absence, matte black, utterly without a face, watching her the way a predator watches something it has already decided to keep.
They call him the Onyx Man. He doesn't rage, and he doesn't rush. He's patient — and patience, it turns out, is so much worse.
Every safe place Savannah builds in her mind, he finds a way inside. Every rule she learns, he breaks. And the closer she gets to understanding what he actually is, the more she realizes he isn't hunting her at random — he's been waiting for her, specifically, all along.
With a paramedic's steady hands, a sleep lab racing against her own failing body, and the people she loves refusing to let her fight alone, Savannah has one chance to face something ancient, formless, and starving for a kind of connection it has never once been offered.
But some doors, once opened, don't close. And some things that learn to wait... never really stop.
THE ONYX TERROR — because the moment you close your eyes, he's already there.