The biting cold seeped out from the seams between his bones, like countless thin ice needles, pricking Xu Yi to the point where he almost lost the strength to curl up. The stone walls of the cold prison were damp and cold, clinging to his thin prison clothes, making his skin numb with cold. The smell of rusty blood surged in his throat. It was the blood vomited out when the jailer kicked him in the ribs.