The arctic rift widened and the whole city was plunged into a rush to buy. Zhang Xue was slumped on the sofa and cursing after someone in her miniskirt touched her legs and squeezed her shoulders. I sorted the supplies and leaned against the cabinet to look at her. My eyes fell on the black spots on her ankles - there was an unusual blue-green pattern under the skin. She was still cursing without realizing it, and when I bent down to get the medicine box, I heard a very light clicking sound from the collar on the back of her neck.