The effect of the phrase was worth the sleepless night, worth the half hour Tamar had been standing around the stairwell in the cold. Lockley’s eyes widened, then narrowed; her mouth opened, then closed. Tamar couldn’t help thinking how much more amusing it would have been with her enormous glasses on, but no matter. In an instant she’d smoothed her ruffled exterior, expression as cool and placid as a pond frozen over in winter. “I’m sorry,” she said, “I don’t know what you’re talking about.”