On Monday night, customers arrived one after another at the Yunhai Massage House on the third floor.
Changan was squatting by the elevator door, sniffing carefully each time a new customer entered. Since becoming a soul body, his connection with Gu Ping was intimate. He memorized scents and Gu Ping memorized faces; combined, their efficiency was incredibly high. Cameras had already been placed in all the right spots. Everyone ignored them as if they weren't there, and the electromagnetic wave shielding set up for the top three cameras was utterly useless.
Once out of the elevator, all electronic devices on the customers ceased functioning, and everyone who entered was subjected to rigorous checks. But no matter how thorough the checking, nobody would think to look for an invisible black-backed dog watching intently by the elevator.