Chapter 1553: Western Xia

Leo could only stand outside and watch her conduct the test. Chloe held a black portable device, scanning the dagger sheath from left to right. A red line swept across the dagger sheath. After scanning three times, Chloe put down the device and walked out of the laboratory. "I heard you've been in the lab for three days. Is it necessary to work so hard?" Leo asked before Chloe could speak. Chloe looked at Leo with a puzzled expression. "What does my time in the lab have to do with you?" "Didn't you say you'd lend me the dagger sheath for only a week? Do you know how long it takes to determine a parameter?" Leo realized it was his fault and felt a bit embarrassed. "I'm not in a hurry to get the dagger sheath back. You can keep it for a few more days. By the way, did you find anything?" "Yes, come in and take a look." Chloe led Leo into the laboratory. In front of the computer screen, two images were displayed side by side. "Do you see any difference between the two images?" Chl