As much as Khan wanted to preside over the work on the crumbled mines, his presence was required elsewhere. Checking his phone, he found he had spent around half a day away, which was far longer than a person in his position could afford.
Luckily, Khan's orders were absolute, and the soldiers who had heard them were too terrified of him to strive for anything but perfection, so he didn't doubt the results. He could leave knowing his parents' tomb would be safe.
A slower trip back to Baoway unfolded. Khan did his best to delay his return, but most of the voyage involved teleports, limiting his influence over its length.