Iron Vow Omnibus: Includes Study in Scarlett, Tithe of the Sovereign, Ashes of the Vow, and What the Nothing Holds

She had no surname, no file history, and a void in her chest where her magic should have been.

The Obsidian Marrow didn't recruit girls like Scarlett. It recruited assets — students with classifiable abilities and enough extraction value to justify the cost. Scarlett had none of that on paper. What she had was an absence the machine couldn't read, and someone at the top of the food chain who wanted to know why.

What she didn't expect was the wolf who'd been circling her for six days before she ever set foot in the mountain. Or the Frostwoven mathematician rebuilding his family's crimes from the evidence locked in the walls. Or the ancient who had stopped counting years long before the academy was built, and who looked at the void in her chest like he recognized it.

The extraction system was three thousand years old. The families who ran it had more power than the Board that governed them. And the machine had never encountered a null it couldn't eventually break.

It had never encountered Scarlett.

This is the complete Iron Vow Society series — Study in Scarlett, Tithe of the Sovereign, Ashes of the Vow, and What the Nothing Holds — collected in one volume.

dark academia fantasy, monster romance, multi-partner relationships, explicit content, institutional violence, and a heroine who makes the nothing mean something.