Although it was easy to for the guard to miss the count before, it was still impossible for the slaves to escape because there was only one entrance and exit of the mine which was heavily guarded. If they were assumed missing, they would have been able to escape with the help of their cultivation base. But now, there would be an investigation that would be launched.
The king was keeping a close tab on the prince and was looking out for each mistake that he made, thus the prince was rather paranoid and did everything to prevent that. This lead to him keeping a close eye on the workings of the mine.
Just like this another year passed by and it had been two years total since the Lost immortal had become a cultivator. Because of the terrible conditions and lack of resources, the lost immortal was barely able to reach the early stage of the qi refining realm.
