Blacker Than Black

Apparently, my twin and I are two of York's most notorious criminals. We've been Nightwalkers in the blue-light district since the vamps took over the world. Don't know how many years it's been. Long enough that a stream of fellow 'walkers have come and gone. Most don't last long selling their chi. End up face-down in the gutter, or worse. For us, one night and one sale change everything. Monsieur Garthelle is the first john to hunt me down.
He calls me a chi thief in one breath and offers absolution-servitude-in the next. Maybe I'm a sucker, but I like living and breathing. Strange that such a powerful vamp would show leniency to a mere human. And something's not right with the chi I took from him. It won't go away. Neither will he, and he's forcing us to spy on his peers. Then a vamp turns up dead, and we go from playing eyes and ears to investigating a murder.
This isn't what I signed up for. All I ever wanted was to sell a little chi, maybe steal some in return. I should've kept my damn hands to myself. This is my story. Look through my eyes.