Some griefs are too large to die.

On a rain-black night on Blackwater Street, Elias falls through an open manhole and vanishes into the sewers.

For most mothers, it would be a tragedy.

For Seraphine, a vampire who has walked the city for centuries, it is an unmaking.

The blood bond between mother and son snaps. Somewhere far beneath the city, something has taken him. The beggars call it the Sewer King. The missing children whisper of the Hollow Choir. And beneath the ruined theatre, a black door marked with an eye has begun to breathe.

As the rain never stops, Seraphine descends.

She will hunt through alleys, churches, and tunnels that remember every name ever lost. She will interrogate vampires, defy hunters, and offer her own blood to the darkness.

Because she is not just searching for her child.

She is declaring war on whatever took him.