The needle tip pierced his flesh, but Lu Yuan felt no pain. Instead, a chill seeped inward through the pinprick.
The instant the chill spread, he understood what Margaret intended to do.
That watery vapor merged into his bloodstream through the Copper Needle, guided by her will as it flowed through every limb and bone, probing as it went.
He was no stranger to this method. It followed much the same principle as when he sent the Worm of Knowledge drilling into someone else's body to investigate.
But Lu Yuan's entire body stiffened at once, because far too many things were hidden inside him.
But on second thought, the watery vapor was examining flesh, bones, and old wounds that had yet to heal; it remained only at the level of skin and flesh. The things that truly mattered were hidden deep within his left eye—things of consciousness, where blood could not flow.
He kept watch inwardly for two breaths. Only after confirming that the probing current had never gone behind his eye did he slowly relax.
The chill flowed through his body again and again.
Lu Yuan suddenly felt comfortable all over. The taut string that had been drawn tight for days finally slackened, his eyelids grew too heavy to lift, and a wave of sleepiness surged over him from nowhere. It felt so good that he only wanted to sleep like this.
The moment the Copper Needle was withdrawn, the chill receded, and the fatigue that had been suppressed came roaring back in a swarm, making his temples throb.
"Nothing seriously wrong with your body." Margaret rinsed the Copper Needle in watery vapor and put it back into its case. "The roots of several old injuries haven't been fully cleared. You've got some hidden damage left over. It isn't