Potion junkies huddled in shadowy corners with their ampules and pipes and needles. The occasional flick of a lighter’s flame illuminated their dirty, desperate faces, and the air sizzled with the ozone scent of spent magic.I considered stopping to harass them. Arrest them for loitering and possession of illegal arcane substances. But they’d just be back on the street in a couple of days or be replaced by another dirty, desperate face looking to escape the Mundane world.Besides, these hard cases weren’t my real targets. To make a dent, you had to go after the runners and stash boys, the potion cookers—the money men. The way I figured, better to hunt the vipers instead of the ’hood rats who craved the bite of their fangs. But for the last couple of weeks, the corner thugs had been laying low, staying off the streets after dark. My instincts were tingling, though, so I kept walking the beat, hoping to find a prize.Near Canal Street, growls rolled out of a pitch-black alley. I stilled and listened with my hand on my hawthorn-wood nightstick.