CLAIRE'S POV

The concrete walls of the lower river terminal shook with the deep, steady hum of huge water pumps that were running and waiting.

Rain leaked through the cracked roof of the underground control room and made puddles around my heavy boots as I stepped into the dim yellow emergency light. The place smelled of wet stone, old oil, and rust. Somewhere in the dark, water dripped again and again, like a clock counting down.

I reached up to my throat and pulled out the heavy steel key card that hung from a silver chain around my neck. The metal plates in my shoulder hummed softly, a strange, steady...