The back alleys and cluttered streets of Budapest were as unsightly in the middle of the night as they were when the sun was shining, sometimes even more so if Eliza Wrath couldn’t see what she was stepping in. She’d spent enough time here now to distinguish urine from blood, even without the smell, but that didn’t make her any happier to get either on her expensive boots.

In the past two years, she’d been transferred more times than she could count. From KC to Cali, to Siberia, to Hungary, to Canada, a few stops on the way, back here. She never bothered to question the reasoning anymore, not since...