The merchant’s caravans passed three posts of the restrictive patrol, before being able to enter the center of the camp. Although this camp had a dense exterior defense, the interior defense was slobby. As when entering the horse carriage stable, there was not even a shadow of a guard. Therefore, Xueming used the gap to drop himself down from under the merchant’s carriage, before getting a chance to attack a worker from one of the merchant’s caravans who went about his business until he was knocked out. Xueming then had stolen his clothes and changed into them in order to infiltrate with tens of groups of the merchant’s caravans.
Inside the camp, was a large courtyard that took up a bit of space above the ground. However, the reason why it was able to contain the merchant’s caravans and deceive the spies, was because the real structures of this camp were built deep underground.