Six bodies. No cause of death. One symbol that only she can read.

Forensic archivist Zara Cole has spent twelve years cataloguing strange deaths. She has never touched a scene she couldn't explain.

Until she touches the seal — and something ancient on the other side of the world recognises her.
The mark it leaves leads her through the veil into the Undercourt: a hidden world of vampires, fallen angels, witches, and fae that has existed beneath the city she has always known. A world on the edge of collapse, held together by a dying god and the lord of its neutral territories — a half-fae, half-fallen angel named Kael Voss who has been waiting three hundred years for someone to come through the veil.

He was not prepared for who that someone turned out to be.

The Marking spreading across Zara's skin means she is the bridge — the only person who can restore the dying god, rebuild the wall between worlds, and stop the deaths bleeding into the surface. She has five days. One chance. And an enemy who has spent three centuries making sure no one succeeds.
The only problem is the man standing beside her.

Because the last person who carried the Marking was someone Kael Voss loved. The completion broke her.

And he has spent three hundred years building walls around the specific gap that destroyed everything — the gap that opens, without his permission, every time Zara Cole looks at him.

She looks at everything long and still and without flinching.

She is looking at him now.

Dark. Slow-burn. Completely earned.

Between Worlds — the fantasy romance that will keep you awake.