From their vantage point, Jack saw Dr. Ye walk into sight, then disappear inside her building. She would be climbing three sets of stairs now to her apartment where she was supposed to check her subscription. Hopefully they could have a reply within ten minutes and she would set out for the market in the next half hour. From what Jack could see she was a short, delicate woman. Her black hair was tied up neatly in a ponytail and she had walked with her eyes on the ground, as if deep in thought. But Jack hadn’t detected any particular alarm in her, which was a good sign for them.